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***NOTE***: For sunshine hours, 90 percent of an American figure is probably the legitimate number.

Climate data for New York City (Belvedere Castle, Central Park)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 72
(22) 		75
(24) 		86
(30) 		96
(36) 		99
(37) 		101
(38) 		106
(41) 		104
(40) 		102
(39) 		94
(34) 		84
(29) 		75
(24) 		106
(41)
Mean daily maximum °F (°C) 38.3
(3.5) 		41.6
(5.3) 		49.7
(9.8) 		61.2
(16.2) 		70.8
(21.6) 		79.3
(26.3) 		84.1
(28.9) 		82.6
(28.1) 		75.2
(24.0) 		63.8
(17.7) 		53.8
(12.1) 		43.0
(6.1) 		62.0
(16.7)
Daily mean °F (°C) 32.6
(0.3) 		35.3
(1.8) 		42.5
(5.8) 		53.0
(11.7) 		62.4
(16.9) 		71.4
(21.9) 		76.5
(24.7) 		75.2
(24.0) 		68.0
(20.0) 		56.9
(13.8) 		47.7
(8.7) 		37.5
(3.1) 		54.9
(12.7)
Mean daily minimum °F (°C) 26.9
(−2.8) 		28.9
(−1.7) 		35.2
(1.8) 		44.8
(7.1) 		54.0
(12.2) 		63.6
(17.6) 		68.8
(20.4) 		67.8
(19.9) 		60.8
(16.0) 		50.0
(10.0) 		41.6
(5.3) 		32.0
(0.0) 		47.9
(8.8)
Record low °F (°C) −6
(−21) 		−15
(−26) 		3
(−16) 		12
(−11) 		32
(0) 		44
(7) 		52
(11) 		50
(10) 		39
(4) 		28
(−2) 		7
(−14) 		−13
(−25) 		−15
(−26)
Average precipitation inches (mm) 3.65
(93) 		3.09
(78) 		4.36
(111) 		4.50
(114) 		4.19
(106) 		4.41
(112) 		4.60
(117) 		4.44
(113) 		4.28
(109) 		4.40
(112) 		4.02
(102) 		4.00
(102) 		49.94
(1,268)
Average snowfall inches (cm) 7.0
(18) 		9.2
(23) 		3.9
(9.9) 		0.6
(1.5) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.3
(0.76) 		4.8
(12) 		25.8
(66)
Average precipitation days (≥ 0.01 in) 10.4 9.2 10.9 11.5 11.1 11.2 10.4 9.5 8.7 8.9 9.6 10.6 122.0
Average snowy days (≥ 0.1 in) 4.0 2.8 1.8 0.3 0 0 0 0 0 0 0.2 2.3 11.4
Average relative humidity (%) 61.5 60.2 58.5 55.3 62.7 65.2 64.2 66.0 67.8 65.6 64.6 64.1 63.0
Mean monthly sunshine hours 162.7 163.1 212.5 225.6 256.6 257.3 268.2 268.2 219.3 211.2 151.0 139.0 2,534.7
Percent possible sunshine 54 55 57 57 57 57 59 63 59 61 51 48 57
Source: NOAA (relative humidity and sun 1961–1990)[1][2][3]

See Geography of New York City for additional climate information from the outer boroughs.

Climate data for Los Angeles (USC, Los Angeles)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 95
(35) 		95
(35) 		99
(37) 		106
(41) 		103
(39) 		112
(44) 		109
(43) 		106
(41) 		113
(45) 		108
(42) 		100
(38) 		92
(33) 		113
(45)
Mean daily maximum °F (°C) 68.2
(20.1) 		68.6
(20.3) 		70.2
(21.2) 		72.7
(22.6) 		74.5
(23.6) 		78.1
(25.6) 		83.1
(28.4) 		84.4
(29.1) 		83.1
(28.4) 		78.5
(25.8) 		72.8
(22.7) 		67.7
(19.8) 		75.2
(24.0)
Daily mean °F (°C) 58.0
(14.4) 		58.9
(14.9) 		60.6
(15.9) 		63.1
(17.3) 		65.8
(18.8) 		69.2
(20.7) 		73.3
(22.9) 		74.3
(23.5) 		73.1
(22.8) 		68.6
(20.3) 		62.4
(16.9) 		57.6
(14.2) 		65.4
(18.6)
Mean daily minimum °F (°C) 47.8
(8.8) 		49.3
(9.6) 		51.0
(10.6) 		53.5
(11.9) 		57.1
(13.9) 		60.3
(15.7) 		63.6
(17.6) 		64.1
(17.8) 		63.1
(17.3) 		58.7
(14.8) 		52.0
(11.1) 		47.5
(8.6) 		55.7
(13.2)
Record low °F (°C) 28
(−2) 		28
(−2) 		31
(−1) 		36
(2) 		40
(4) 		46
(8) 		49
(9) 		49
(9) 		44
(7) 		40
(4) 		34
(1) 		30
(−1) 		28
(−2)
Average rainfall inches (mm) 3.12
(79) 		3.80
(97) 		2.43
(62) 		0.91
(23) 		0.26
(6.6) 		0.09
(2.3) 		0.01
(0.25) 		0.04
(1.0) 		0.24
(6.1) 		0.66
(17) 		1.04
(26) 		2.33
(59) 		14.93
(379.25)
Average rainy days (≥ 0.01 in) 6.1 6.4 5.5 3.2 1.3 0.6 0.3 0.3 1.0 2.5 3.3 5.2 35.7
Mean monthly sunshine hours 225.3 222.5 267.0 303.5 276.2 275.8 364.1 349.5 278.5 255.1 217.3 219.4 3,254.2
Percent possible sunshine 71 72 72 78 64 64 83 84 75 73 70 71 73
Source: NOAA (sun 1961–1977)[1][4][5]
Climate data for Chicago (O'Hare Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 67
(19) 		75
(24) 		88
(31) 		91
(33) 		98
(37) 		104
(40) 		105
(41) 		102
(39) 		101
(38) 		94
(34) 		81
(27) 		71
(22) 		105
(41)
Mean daily maximum °F (°C) 31.0
(−0.6) 		35.3
(1.8) 		46.6
(8.1) 		59.0
(15.0) 		70.0
(21.1) 		79.7
(26.5) 		84.1
(28.9) 		81.9
(27.7) 		74.8
(23.8) 		62.3
(16.8) 		48.2
(9.0) 		34.8
(1.6) 		59.1
(15.1)
Daily mean °F (°C) 23.8
(−4.6) 		27.7
(−2.4) 		37.9
(3.3) 		48.9
(9.4) 		59.1
(15.1) 		68.9
(20.5) 		74.0
(23.3) 		72.4
(22.4) 		64.6
(18.1) 		52.5
(11.4) 		40.3
(4.6) 		27.7
(−2.4) 		49.8
(9.9)
Mean daily minimum °F (°C) 16.5
(−8.6) 		20.1
(−6.6) 		29.2
(−1.6) 		38.8
(3.8) 		48.3
(9.1) 		58.1
(14.5) 		63.9
(17.7) 		62.9
(17.2) 		54.3
(12.4) 		42.8
(6.0) 		32.4
(0.2) 		20.7
(−6.3) 		40.8
(4.9)
Record low °F (°C) −27
(−33) 		−21
(−29) 		−12
(−24) 		7
(−14) 		27
(−3) 		35
(2) 		45
(7) 		42
(6) 		29
(−2) 		14
(−10) 		−2
(−19) 		−25
(−32) 		−27
(−33)
Average precipitation inches (mm) 1.73
(44) 		1.79
(45) 		2.50
(64) 		3.38
(86) 		3.68
(93) 		3.45
(88) 		3.70
(94) 		4.90
(124) 		3.21
(82) 		3.15
(80) 		3.15
(80) 		2.25
(57) 		36.89
(937)
Average snowfall inches (cm) 10.8
(27) 		9.1
(23) 		5.6
(14) 		1.2
(3.0) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.2
(0.51) 		1.2
(3.0) 		8.2
(21) 		36.3
(92)
Average precipitation days (≥ 0.01 in) 10.5 8.8 11.1 12.0 11.6 10.2 9.8 9.8 8.3 10.2 10.8 11.0 124.1
Average snowy days (≥ 0.1 in) 8.2 5.9 4.2 0.9 0 0 0 0 0 0.2 1.7 6.9 28.0
Average relative humidity (%) 72.2 71.6 69.7 64.9 64.1 65.6 68.5 70.7 71.1 68.6 72.5 75.5 69.6
Mean monthly sunshine hours 135.8 136.2 187.0 215.3 281.9 311.4 318.4 283.0 226.6 193.2 113.3 106.3 2,508.4
Percent possible sunshine 46 46 51 54 62 68 69 66 60 56 38 37 56
Source: NOAA (relative humidity and sun 1961–1990)[1][6][7]
Climate data for Dallas (Dallas Love Field)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 88
(31) 		95
(35) 		97
(36) 		100
(38) 		103
(39) 		112
(44) 		111
(44) 		111
(44) 		110
(43) 		100
(38) 		89
(32) 		89
(32) 		112
(44)
Mean daily maximum °F (°C) 56.8
(13.8) 		60.8
(16.0) 		68.7
(20.4) 		76.7
(24.8) 		84.2
(29.0) 		91.6
(33.1) 		96.0
(35.6) 		96.4
(35.8) 		88.7
(31.5) 		78.5
(25.8) 		67.1
(19.5) 		57.5
(14.2) 		76.9
(24.9)
Mean daily minimum °F (°C) 37.3
(2.9) 		41.1
(5.1) 		48.5
(9.2) 		56.2
(13.4) 		65.4
(18.6) 		72.8
(22.7) 		76.7
(24.8) 		76.8
(24.9) 		69.0
(20.6) 		58.2
(14.6) 		47.6
(8.7) 		38.5
(3.6) 		57.3
(14.1)
Record low °F (°C) −3
(−19) 		2
(−17) 		11
(−12) 		30
(−1) 		39
(4) 		53
(12) 		56
(13) 		57
(14) 		36
(2) 		26
(−3) 		17
(−8) 		1
(−17) 		−3
(−19)
Average precipitation inches (mm) 2.06
(52) 		2.59
(66) 		3.49
(89) 		3.07
(78) 		4.92
(125) 		4.11
(104) 		2.21
(56) 		1.87
(47) 		2.84
(72) 		4.79
(122) 		2.88
(73) 		2.74
(70) 		37.57
(954)
Average snowfall inches (cm) 0.5
(1.3) 		0.6
(1.5) 		0.1
(0.25) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 0.3
(0.76) 		1.5
(3.8)
Average precipitation days (≥ 0.01 in) 6.7 6.5 7.6 6.7 9.7 8.0 4.9 4.6 5.3 7.5 6.6 6.6 80.7
Average snowy days (≥ 0.1 in) 0.5 0.2 0.2 0 0 0 0 0 0 0 0.1 0.3 1.3
Average relative humidity (%) 67.5 66.4 63.7 65.3 69.7 65.8 59.8 59.5 66.5 65.7 67.4 67.5 65.4
Mean monthly sunshine hours 183.5 178.3 227.7 236.0 258.4 297.8 332.4 304.5 246.2 228.1 183.8 173.0 2,849.7
Percent possible sunshine 58 58 61 61 60 69 76 74 66 65 59 56 64
Source: NOAA (sun and relative humidity 1961–1990 at DFW Airport)[a][8][1][3]
Climate data for Philadelphia (Philadelphia Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 74
(23) 		79
(26) 		87
(31) 		95
(35) 		97
(36) 		102
(39) 		104
(40) 		106
(41) 		102
(39) 		96
(36) 		84
(29) 		73
(23) 		106
(41)
Mean daily maximum °F (°C) 40.3
(4.6) 		43.8
(6.6) 		52.7
(11.5) 		63.9
(17.7) 		73.8
(23.2) 		82.7
(28.2) 		87.1
(30.6) 		85.3
(29.6) 		78.0
(25.6) 		66.6
(19.2) 		56.0
(13.3) 		44.8
(7.1) 		64.6
(18.1)
Mean daily minimum °F (°C) 25.6
(−3.6) 		27.7
(−2.4) 		34.4
(1.3) 		44.1
(6.7) 		54.0
(12.2) 		63.8
(17.7) 		69.2
(20.7) 		67.9
(19.9) 		60.3
(15.7) 		48.4
(9.1) 		39.2
(4.0) 		30.1
(−1.1) 		47.1
(8.4)
Record low °F (°C) −7
(−22) 		−11
(−24) 		5
(−15) 		14
(−10) 		28
(−2) 		44
(7) 		51
(11) 		44
(7) 		35
(2) 		25
(−4) 		8
(−13) 		−5
(−21) 		−11
(−24)
Average precipitation inches (mm) 3.03
(77) 		2.65
(67) 		3.79
(96) 		3.56
(90) 		3.71
(94) 		3.43
(87) 		4.35
(110) 		3.50
(89) 		3.78
(96) 		3.18
(81) 		2.99
(76) 		3.56
(90) 		41.53
(1,055)
Average snowfall inches (cm) 6.5
(17) 		8.8
(22) 		2.9
(7.4) 		0.5
(1.3) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.3
(0.76) 		3.4
(8.6) 		22.4
(57)
Average precipitation days (≥ 0.01 in) 10.6 9.4 10.5 11.3 11.1 9.8 9.9 8.4 8.7 8.6 9.3 10.6 118.2
Average snowy days (≥ 0.1 in) 4.4 3.6 1.8 0.4 0 0 0 0 0 0 0.2 1.8 12.2
Average relative humidity (%) 66.2 63.6 61.7 60.4 65.4 67.8 69.6 70.4 71.6 70.8 68.4 67.7 67.0
Mean monthly sunshine hours 155.7 154.7 202.8 217.0 245.1 271.2 275.6 260.1 219.3 204.5 154.7 137.7 2,498.4
Percent possible sunshine 52 52 55 55 55 61 61 61 59 59 52 47 56
Source: NOAA (relative humidity and sun 1961–1990) [1][2][3]
Climate data for Houston (George Bush Intercontinental Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 87
(31) 		91
(33) 		96
(36) 		95
(35) 		99
(37) 		107
(42) 		105
(41) 		109
(43) 		109
(43) 		99
(37) 		89
(32) 		85
(29) 		109
(43)
Mean daily maximum °F (°C) 62.9
(17.2) 		66.3
(19.1) 		73.0
(22.8) 		79.6
(26.4) 		86.3
(30.2) 		91.4
(33.0) 		93.7
(34.3) 		94.5
(34.7) 		89.7
(32.1) 		82.0
(27.8) 		72.5
(22.5) 		64.3
(17.9) 		79.7
(26.5)
Mean daily minimum °F (°C) 43.2
(6.2) 		46.5
(8.1) 		52.5
(11.4) 		59.4
(15.2) 		67.6
(19.8) 		73.5
(23.1) 		75.1
(23.9) 		74.8
(23.8) 		69.8
(21.0) 		60.9
(16.1) 		52.1
(11.2) 		44.6
(7.0) 		60.0
(15.6)
Record low °F (°C) 5
(−15) 		6
(−14) 		21
(−6) 		31
(−1) 		42
(6) 		52
(11) 		62
(17) 		54
(12) 		45
(7) 		29
(−2) 		19
(−7) 		7
(−14) 		5
(−15)
Average precipitation inches (mm) 3.38
(86) 		3.20
(81) 		3.41
(87) 		3.31
(84) 		5.09
(129) 		5.93
(151) 		3.79
(96) 		3.76
(96) 		4.12
(105) 		5.70
(145) 		4.34
(110) 		3.74
(95) 		49.77
(1,264)
Average precipitation days (≥ 0.01 in) 9.6 9.2 8.8 6.8 8.0 10.6 9.1 8.3 8.0 7.9 8.2 9.5 104.0
Average relative humidity (%) 74.7 73.4 72.7 73.1 75.0 74.6 74.4 75.1 76.8 75.4 76.0 75.5 74.7
Mean monthly sunshine hours 143.4 155.0 192.5 209.8 249.2 281.3 293.9 270.5 236.5 228.8 168.3 148.7 2,577.9
Percent possible sunshine 44 50 52 54 59 67 68 66 64 64 53 47 58
Source: NOAA (relative humidity 1969–1990, sun 1961–1990)[1][2][3]
Climate data for Washington, D.C. (Reagan National Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		84
(29) 		93
(34) 		95
(35) 		99
(37) 		104
(40) 		106
(41) 		106
(41) 		104
(40) 		96
(36) 		86
(30) 		79
(26) 		106
(41)
Mean daily maximum °F (°C) 43.4
(6.3) 		47.1
(8.4) 		55.9
(13.3) 		66.6
(19.2) 		75.4
(24.1) 		84.2
(29.0) 		88.4
(31.3) 		86.5
(30.3) 		79.5
(26.4) 		68.4
(20.2) 		57.9
(14.4) 		46.8
(8.2) 		66.7
(19.3)
Daily mean °F (°C) 36.0
(2.2) 		39.0
(3.9) 		46.8
(8.2) 		56.8
(13.8) 		66.0
(18.9) 		75.2
(24.0) 		79.8
(26.6) 		78.1
(25.6) 		71.0
(21.7) 		59.5
(15.3) 		49.6
(9.8) 		39.7
(4.3) 		58.1
(14.5)
Mean daily minimum °F (°C) 28.6
(−1.9) 		30.9
(−0.6) 		37.6
(3.1) 		47.0
(8.3) 		56.5
(13.6) 		66.3
(19.1) 		71.1
(21.7) 		69.7
(20.9) 		62.4
(16.9) 		50.6
(10.3) 		41.2
(5.1) 		32.5
(0.3) 		49.5
(9.7)
Record low °F (°C) −14
(−26) 		−15
(−26) 		4
(−16) 		15
(−9) 		33
(1) 		43
(6) 		52
(11) 		49
(9) 		36
(2) 		26
(−3) 		11
(−12) 		−13
(−25) 		−15
(−26)
Average precipitation inches (mm) 2.81
(71) 		2.62
(67) 		3.48
(88) 		3.06
(78) 		3.99
(101) 		3.78
(96) 		3.73
(95) 		2.93
(74) 		3.72
(94) 		3.40
(86) 		3.17
(81) 		3.05
(77) 		39.74
(1,009)
Average snowfall inches (cm) 5.6
(14) 		5.7
(14) 		1.3
(3.3) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.5
(1.3) 		2.3
(5.8) 		15.4
(39)
Average precipitation days (≥ 0.01 in) 9.6 9.0 10.5 10.4 11.1 10.7 10.3 8.2 8.3 7.7 8.6 9.7 114.1
Average snowy days (≥ 0.1 in) 3.0 2.4 0.9 0.1 0 0 0 0 0 0 0.2 1.5 8.1
Average relative humidity (%) 62.1 60.5 58.6 58.0 64.5 65.8 66.9 69.3 69.7 67.4 64.7 64.1 64.3
Mean monthly sunshine hours 144.6 151.8 204.0 228.2 260.5 283.2 280.5 263.1 225.0 203.6 150.2 133.0 2,527.7
Percent possible sunshine 48 50 55 57 59 64 62 62 60 59 50 45 57
Source: NOAA (relative humidity and sun 1961−1990)[1][2][3][9]
Climate data for Miami (Miami Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 88
(31) 		89
(32) 		93
(34) 		96
(36) 		96
(36) 		98
(37) 		100
(38) 		98
(37) 		97
(36) 		95
(35) 		91
(33) 		89
(32) 		100
(38)
Mean daily maximum °F (°C) 76.4
(24.7) 		78.1
(25.6) 		80.3
(26.8) 		83.2
(28.4) 		87.0
(30.6) 		89.5
(31.9) 		90.9
(32.7) 		91.0
(32.8) 		89.3
(31.8) 		86.2
(30.1) 		81.7
(27.6) 		77.9
(25.5) 		84.3
(29.1)
Daily mean °F (°C) 68.2
(20.1) 		70.2
(21.2) 		72.6
(22.6) 		75.8
(24.3) 		79.9
(26.6) 		82.7
(28.2) 		84.1
(28.9) 		84.2
(29.0) 		82.9
(28.3) 		79.9
(26.6) 		74.9
(23.8) 		70.5
(21.4) 		77.2
(25.1)
Mean daily minimum °F (°C) 59.9
(15.5) 		62.3
(16.8) 		64.9
(18.3) 		68.3
(20.2) 		72.9
(22.7) 		76.0
(24.4) 		77.3
(25.2) 		77.4
(25.2) 		76.5
(24.7) 		73.5
(23.1) 		68.1
(20.1) 		63.0
(17.2) 		70.0
(21.1)
Record low °F (°C) 28
(−2) 		27
(−3) 		32
(0) 		39
(4) 		50
(10) 		60
(16) 		66
(19) 		67
(19) 		62
(17) 		45
(7) 		36
(2) 		30
(−1) 		27
(−3)
Average rainfall inches (mm) 1.62
(41) 		2.25
(57) 		3.00
(76) 		3.14
(80) 		5.34
(136) 		9.67
(246) 		6.50
(165) 		8.88
(226) 		9.86
(250) 		6.33
(161) 		3.27
(83) 		2.04
(52) 		61.90
(1,572)
Average rainy days (≥ 0.01 in) 6.9 6.5 7.0 6.4 10.0 16.4 16.9 18.9 17.9 12.7 8.4 7.2 135.2
Average relative humidity (%) 72.7 70.9 69.5 67.3 71.6 76.2 74.8 76.2 77.8 74.9 73.8 72.5 73.2
Mean monthly sunshine hours 219.8 216.9 277.2 293.8 301.3 288.7 308.7 288.3 262.2 260.2 220.8 216.1 3,154
Percent possible sunshine 66 69 75 77 72 70 73 71 71 73 68 66 71
Source: NOAA (relative humidity and sun 1961–1990),[1][2][3] The Weather Channel[10]
Climate data for Atlanta (Hartsfield–Jackson Int'l)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		80
(27) 		89
(32) 		93
(34) 		97
(36) 		106
(41) 		105
(41) 		104
(40) 		102
(39) 		95
(35) 		84
(29) 		79
(26) 		106
(41)
Mean daily maximum °F (°C) 52.3
(11.3) 		56.6
(13.7) 		64.6
(18.1) 		72.5
(22.5) 		79.9
(26.6) 		86.4
(30.2) 		89.1
(31.7) 		88.1
(31.2) 		82.2
(27.9) 		72.7
(22.6) 		63.6
(17.6) 		54.0
(12.2) 		71.9
(22.2)
Daily mean °F (°C) 43.3
(6.3) 		47.2
(8.4) 		54.3
(12.4) 		62.0
(16.7) 		70.1
(21.2) 		77.3
(25.2) 		80.2
(26.8) 		79.4
(26.3) 		73.5
(23.1) 		63.3
(17.4) 		54.0
(12.2) 		45.3
(7.4) 		62.4
(16.9)
Mean daily minimum °F (°C) 34.3
(1.3) 		37.7
(3.2) 		44.1
(6.7) 		51.5
(10.8) 		60.3
(15.7) 		68.2
(20.1) 		71.3
(21.8) 		70.7
(21.5) 		64.8
(18.2) 		54.0
(12.2) 		44.5
(6.9) 		36.5
(2.5) 		53.2
(11.8)
Record low °F (°C) −8
(−22) 		−9
(−23) 		10
(−12) 		25
(−4) 		37
(3) 		39
(4) 		53
(12) 		55
(13) 		36
(2) 		28
(−2) 		3
(−16) 		0
(−18) 		−9
(−23)
Average precipitation inches (mm) 4.20
(107) 		4.67
(119) 		4.81
(122) 		3.36
(85) 		3.67
(93) 		3.95
(100) 		5.27
(134) 		3.90
(99) 		4.47
(114) 		3.41
(87) 		4.10
(104) 		3.90
(99) 		49.71
(1,263)
Average snowfall inches (cm) 1.3
(3.3) 		0.4
(1.0) 		0.8
(2.0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.4
(1.0) 		2.9
(7.4)
Average precipitation days (≥ 0.01 in) 10.9 9.8 9.7 8.6 9.3 9.9 11.7 9.7 7.5 6.9 8.8 10.5 113.3
Average snowy days (≥ 0.1 in) 0.8 0.6 0.3 0 0 0 0 0 0 0 0 0.4 2.1
Average relative humidity (%) 67.6 63.4 62.4 61.0 67.2 69.8 74.4 74.8 73.9 68.5 68.1 68.4 68.3
Mean monthly sunshine hours 164.0 171.7 220.5 261.2 288.6 284.8 273.8 258.6 227.5 238.5 185.1 164.0 2,738.3
Percent possible sunshine 52 56 59 67 67 66 63 62 61 68 59 53 62
Source: NOAA (relative humidity and sun 1961–1990)[11][1][3]
Climate data for Boston (Logan Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 72
(22) 		70
(21) 		89
(32) 		94
(34) 		97
(36) 		100
(38) 		104
(40) 		102
(39) 		102
(39) 		90
(32) 		83
(28) 		76
(24) 		104
(40)
Mean daily maximum °F (°C) 35.8
(2.1) 		38.7
(3.7) 		45.4
(7.4) 		55.6
(13.1) 		66.0
(18.9) 		75.9
(24.4) 		81.4
(27.4) 		79.6
(26.4) 		72.4
(22.4) 		61.4
(16.3) 		51.5
(10.8) 		41.2
(5.1) 		58.8
(14.9)
Daily mean °F (°C) 29.0
(−1.7) 		31.7
(−0.2) 		38.3
(3.5) 		48.1
(8.9) 		57.9
(14.4) 		67.7
(19.8) 		73.4
(23.0) 		72.1
(22.3) 		64.9
(18.3) 		54.0
(12.2) 		44.7
(7.1) 		34.7
(1.5) 		51.4
(10.8)
Mean daily minimum °F (°C) 22.2
(−5.4) 		24.7
(−4.1) 		31.1
(−0.5) 		40.6
(4.8) 		49.9
(9.9) 		59.5
(15.3) 		65.4
(18.6) 		64.6
(18.1) 		57.4
(14.1) 		46.5
(8.1) 		38.0
(3.3) 		28.2
(−2.1) 		44.1
(6.7)
Record low °F (°C) −13
(−25) 		−18
(−28) 		−8
(−22) 		11
(−12) 		31
(−1) 		41
(5) 		50
(10) 		46
(8) 		34
(1) 		25
(−4) 		−2
(−19) 		−17
(−27) 		−18
(−28)
Average precipitation inches (mm) 3.36
(85) 		3.25
(83) 		4.32
(110) 		3.74
(95) 		3.49
(89) 		3.68
(93) 		3.43
(87) 		3.35
(85) 		3.44
(87) 		3.94
(100) 		3.99
(101) 		3.78
(96) 		43.77
(1,112)
Average snowfall inches (cm) 12.9
(33) 		10.9
(28) 		7.8
(20) 		1.9
(4.8) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 1.3
(3.3) 		9.0
(23) 		43.8
(111)
Average precipitation days (≥ 0.01 in) 11.3 9.8 11.6 11.2 12.0 10.9 9.6 9.4 8.6 9.4 10.6 11.6 126.0
Average snowy days (≥ 0.1 in) 6.7 5.3 4.2 0.7 0 0 0 0 0 0.1 0.8 4.6 22.4
Average relative humidity (%) 62.3 62.0 63.1 63.0 66.7 68.5 68.4 70.8 71.8 68.5 67.5 65.4 66.5
Mean monthly sunshine hours 163.4 168.4 213.7 227.2 267.3 286.5 300.9 277.3 237.1 206.3 143.2 142.3 2,633.6
Percent possible sunshine 56 57 58 57 59 63 65 64 63 60 49 50 59
Source: NOAA (relative humidity and sun 1961−1990)[2][1][3]
Climate data for San Francisco (downtown)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		81
(27) 		87
(31) 		94
(34) 		97
(36) 		97
(36) 		98
(37) 		98
(37) 		101
(38) 		102
(39) 		86
(30) 		76
(24) 		102
(39)
Mean daily maximum °F (°C) 56.9
(13.8) 		60.2
(15.7) 		61.8
(16.6) 		63.1
(17.3) 		64.3
(17.9) 		66.4
(19.1) 		66.5
(19.2) 		68.1
(20.1) 		70.2
(21.2) 		69.2
(20.7) 		63.1
(17.3) 		57.1
(13.9) 		63.9
(17.7)
Daily mean °F (°C) 51.3
(10.7) 		53.9
(12.2) 		55.1
(12.8) 		56.2
(13.4) 		57.6
(14.2) 		59.6
(15.3) 		60.3
(15.7) 		61.6
(16.4) 		62.7
(17.1) 		61.5
(16.4) 		56.6
(13.7) 		51.6
(10.9) 		57.3
(14.1)
Mean daily minimum °F (°C) 45.7
(7.6) 		47.5
(8.6) 		48.5
(9.2) 		49.2
(9.6) 		51.0
(10.6) 		52.8
(11.6) 		54.1
(12.3) 		55.1
(12.8) 		55.1
(12.8) 		53.7
(12.1) 		50.1
(10.1) 		46.1
(7.8) 		50.7
(10.4)
Record low °F (°C) 29
(−2) 		31
(−1) 		33
(1) 		40
(4) 		42
(6) 		46
(8) 		47
(8) 		46
(8) 		47
(8) 		43
(6) 		38
(3) 		27
(−3) 		27
(−3)
Average rainfall inches (mm) 4.50
(114) 		4.46
(113) 		3.26
(83) 		1.46
(37) 		0.70
(18) 		0.16
(4.1) 		0.00
(0.00) 		0.06
(1.5) 		0.21
(5.3) 		1.12
(28) 		3.16
(80) 		4.56
(116) 		23.65
(601)
Average rainy days (≥ 0.01 in) 11.7 11.1 11.0 6.5 3.8 1.5 0.3 1.0 1.7 3.9 8.9 11.6 73.0
Mean monthly sunshine hours 185.9 207.7 269.1 309.3 325.1 311.4 313.3 287.4 271.4 247.1 173.4 160.6 3,061.7
Percent possible sunshine 61 69 73 78 74 70 70 68 73 71 57 54 69
Source: NOAA (sun 1961–1974)[1][12][13]
Climate data for Detroit (Detroit Metro Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 67
(19) 		70
(21) 		86
(30) 		89
(32) 		95
(35) 		104
(40) 		105
(41) 		104
(40) 		100
(38) 		92
(33) 		81
(27) 		69
(21) 		105
(41)
Mean daily maximum °F (°C) 32.0
(0.0) 		35.2
(1.8) 		45.8
(7.7) 		59.1
(15.1) 		69.9
(21.1) 		79.3
(26.3) 		83.4
(28.6) 		81.4
(27.4) 		74.0
(23.3) 		61.6
(16.4) 		48.8
(9.3) 		36.1
(2.3) 		59.0
(15.0)
Daily mean °F (°C) 25.6
(−3.6) 		28.1
(−2.2) 		37.2
(2.9) 		49.2
(9.6) 		59.7
(15.4) 		69.4
(20.8) 		73.6
(23.1) 		72.0
(22.2) 		64.4
(18.0) 		52.4
(11.3) 		41.5
(5.3) 		30.1
(−1.1) 		50.3
(10.1)
Mean daily minimum °F (°C) 19.1
(−7.2) 		21.0
(−6.1) 		28.6
(−1.9) 		39.4
(4.1) 		49.4
(9.7) 		59.5
(15.3) 		63.9
(17.7) 		62.6
(17.0) 		54.7
(12.6) 		43.3
(6.3) 		34.3
(1.3) 		24.1
(−4.4) 		41.8
(5.4)
Record low °F (°C) −21
(−29) 		−20
(−29) 		−4
(−20) 		8
(−13) 		25
(−4) 		36
(2) 		42
(6) 		38
(3) 		29
(−2) 		17
(−8) 		0
(−18) 		−11
(−24) 		−21
(−29)
Average precipitation inches (mm) 1.96
(50) 		2.02
(51) 		2.28
(58) 		2.90
(74) 		3.38
(86) 		3.52
(89) 		3.37
(86) 		3.00
(76) 		3.27
(83) 		2.52
(64) 		2.79
(71) 		2.46
(62) 		33.47
(850)
Average snowfall inches (cm) 12.5
(32) 		10.2
(26) 		6.9
(18) 		1.7
(4.3) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.1
(0.25) 		1.5
(3.8) 		9.6
(24) 		42.5
(108)
Average precipitation days (≥ 0.01 in) 13.1 10.6 11.7 12.2 12.1 10.2 10.4 9.6 9.5 9.8 11.6 13.7 134.5
Average snowy days (≥ 0.1 in) 10.4 8.3 5.4 1.6 0 0 0 0 0 0.2 2.3 8.5 36.7
Average relative humidity (%) 74.7 72.5 70.0 66.0 65.3 67.3 68.5 71.5 73.4 71.6 74.6 76.7 71.0
Mean monthly sunshine hours 119.9 138.3 184.9 217.0 275.9 301.8 317.0 283.5 227.6 176.0 106.3 87.7 2,435.9
Percent possible sunshine 41 47 50 54 61 66 69 66 61 51 36 31 55
Source: NOAA (relative humidity and sun 1961–1990)[1][14][15]
Climate data for Phoenix (Phoenix Sky Harbor Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 88
(31) 		92
(33) 		100
(38) 		105
(41) 		114
(46) 		122
(50) 		121
(49) 		117
(47) 		116
(47) 		107
(42) 		96
(36) 		87
(31) 		122
(50)
Mean daily maximum °F (°C) 67.2
(19.6) 		70.7
(21.5) 		76.9
(24.9) 		85.2
(29.6) 		94.8
(34.9) 		103.9
(39.9) 		106.1
(41.2) 		104.4
(40.2) 		99.8
(37.7) 		88.5
(31.4) 		75.5
(24.2) 		66.0
(18.9) 		86.6
(30.3)
Daily mean °F (°C) 56.4
(13.6) 		59.7
(15.4) 		65.2
(18.4) 		72.7
(22.6) 		82.1
(27.8) 		90.8
(32.7) 		94.8
(34.9) 		93.6
(34.2) 		88.4
(31.3) 		76.7
(24.8) 		64.1
(17.8) 		55.4
(13.0) 		75.0
(23.9)
Mean daily minimum °F (°C) 45.6
(7.6) 		48.7
(9.3) 		53.5
(11.9) 		60.2
(15.7) 		69.4
(20.8) 		77.7
(25.4) 		83.5
(28.6) 		82.7
(28.2) 		76.9
(24.9) 		64.8
(18.2) 		52.7
(11.5) 		44.8
(7.1) 		63.4
(17.4)
Record low °F (°C) 16
(−9) 		24
(−4) 		25
(−4) 		35
(2) 		39
(4) 		49
(9) 		63
(17) 		58
(14) 		47
(8) 		34
(1) 		27
(−3) 		22
(−6) 		16
(−9)
Average precipitation inches (mm) 0.91
(23) 		0.92
(23) 		0.99
(25) 		0.28
(7.1) 		0.11
(2.8) 		0.02
(0.51) 		1.05
(27) 		1.00
(25) 		0.64
(16) 		0.58
(15) 		0.65
(17) 		0.88
(22) 		8.03
(204)
Average precipitation days (≥ 0.01 in) 4.1 4.4 3.9 1.7 1.0 0.5 4.2 5.0 2.8 2.5 2.6 3.9 36.6
Average relative humidity (%) 50.9 44.4 39.3 27.8 21.9 19.4 31.6 36.2 35.6 36.9 43.8 51.8 36.6
Mean monthly sunshine hours 256.0 257.2 318.4 353.6 401.0 407.8 378.5 360.8 328.6 308.9 256.0 244.8 3,871.6
Percent possible sunshine 81 84 86 90 93 95 86 87 89 88 82 79 87
Source: NOAA (relative humidity and sun 1961–1990)[1][16][3], Weather.com[10]
Climate data for Seattle (SeaTac Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 64
(18) 		70
(21) 		78
(26) 		85
(29) 		93
(34) 		96
(36) 		103
(39) 		99
(37) 		98
(37) 		89
(32) 		74
(23) 		66
(19) 		103
(39)
Mean daily maximum °F (°C) 47.2
(8.4) 		49.9
(9.9) 		53.7
(12.1) 		58.5
(14.7) 		64.7
(18.2) 		69.9
(21.1) 		75.8
(24.3) 		76.3
(24.6) 		70.5
(21.4) 		59.7
(15.4) 		50.9
(10.5) 		45.7
(7.6) 		60.2
(15.7)
Daily mean °F (°C) 42.0
(5.6) 		43.4
(6.3) 		46.5
(8.1) 		50.3
(10.2) 		56.0
(13.3) 		60.9
(16.1) 		65.7
(18.7) 		66.1
(18.9) 		61.3
(16.3) 		52.8
(11.6) 		45.4
(7.4) 		40.6
(4.8) 		52.6
(11.4)
Mean daily minimum °F (°C) 36.9
(2.7) 		36.9
(2.7) 		39.3
(4.1) 		42.2
(5.7) 		47.3
(8.5) 		51.9
(11.1) 		55.6
(13.1) 		55.9
(13.3) 		52.1
(11.2) 		45.8
(7.7) 		40.0
(4.4) 		35.6
(2.0) 		45.0
(7.2)
Record low °F (°C) 0
(−18) 		1
(−17) 		11
(−12) 		29
(−2) 		28
(−2) 		38
(3) 		43
(6) 		44
(7) 		35
(2) 		28
(−2) 		6
(−14) 		6
(−14) 		0
(−18)
Average precipitation inches (mm) 5.57
(141) 		3.50
(89) 		3.72
(94) 		2.71
(69) 		1.94
(49) 		1.57
(40) 		0.70
(18) 		0.88
(22) 		1.50
(38) 		3.48
(88) 		6.57
(167) 		5.35
(136) 		37.49
(951)
Average snowfall inches (cm) 1.4
(3.6) 		1.7
(4.3) 		0.8
(2.0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		1.2
(3.0) 		1.7
(4.3) 		6.8
(17.2)
Average precipitation days (≥ 0.01 in) 18.2 14.7 16.9 14.3 12.0 9.1 5.0 4.8 7.9 13.1 18.4 17.6 152.0
Average snowy days (≥ 0.1 in) 1.3 0.9 0.5 0 0 0 0 0 0 0 0.3 1.6 4.6
Average relative humidity (%) 78.0 75.2 73.6 71.4 68.9 67.1 65.4 68.2 73.2 78.6 79.8 80.1 73.3
Mean monthly sunshine hours 69.8 108.8 178.4 207.3 253.7 268.4 312.0 281.4 221.7 142.6 72.7 52.9 2,169.7
Percent possible sunshine 25 38 48 51 54 56 65 64 59 42 26 20 49
Source: NOAA (relative humidity and sun 1961–1990)[17][2][18]
Climate data for Minneapolis (Minneapolis/St. Paul Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 58
(14) 		64
(18) 		83
(28) 		95
(35) 		106
(41) 		104
(40) 		108
(42) 		103
(39) 		104
(40) 		90
(32) 		77
(25) 		68
(20) 		108
(42)
Mean daily maximum °F (°C) 23.7
(−4.6) 		28.9
(−1.7) 		41.3
(5.2) 		57.8
(14.3) 		69.4
(20.8) 		78.8
(26.0) 		83.4
(28.6) 		80.5
(26.9) 		71.7
(22.1) 		58.0
(14.4) 		41.2
(5.1) 		27.1
(−2.7) 		55.2
(12.9)
Mean daily minimum °F (°C) 7.5
(−13.6) 		12.8
(−10.7) 		24.3
(−4.3) 		37.2
(2.9) 		48.9
(9.4) 		58.8
(14.9) 		64.1
(17.8) 		61.8
(16.6) 		52.4
(11.3) 		39.7
(4.3) 		26.2
(−3.2) 		12.3
(−10.9) 		37.2
(2.9)
Record low °F (°C) −41
(−41) 		−33
(−36) 		−32
(−36) 		2
(−17) 		18
(−8) 		34
(1) 		43
(6) 		39
(4) 		26
(−3) 		10
(−12) 		−25
(−32) 		−39
(−39) 		−41
(−41)
Average precipitation inches (mm) 0.90
(23) 		0.77
(20) 		1.89
(48) 		2.66
(68) 		3.36
(85) 		4.25
(108) 		4.04
(103) 		4.30
(109) 		3.08
(78) 		2.43
(62) 		1.77
(45) 		1.16
(29) 		30.61
(778)
Average snowfall inches (cm) 12.2
(31) 		7.7
(20) 		10.3
(26) 		2.4
(6.1) 		trace 0
(0) 		0
(0) 		0
(0) 		trace 0.6
(1.5) 		9.3
(24) 		11.9
(30) 		54.4
(138)
Average precipitation days (≥ 0.01 in) 8.9 7.4 9.3 10.7 11.5 11.3 10.2 9.7 9.8 9.2 8.7 9.8 116.5
Average snowy days (≥ 0.1 in) 8.4 6.8 5.4 2.0 0.1 0 0 0 0 0.6 5.2 9.3 37.8
Average relative humidity (%) 69.9 69.5 67.4 60.3 60.4 63.8 64.8 67.9 70.7 68.3 72.6 74.1 67.5
Mean monthly sunshine hours 156.7 178.3 217.5 242.1 295.2 321.9 350.5 307.2 233.2 181.0 112.8 114.3 2,710.7
Percent possible sunshine 55 61 59 60 64 69 74 71 62 53 39 42 59
Source 1: NOAA (relative humidity and sun 1961−1990)[1][2][19]
Source 2: The Weather Channel[20]
Climate data for San Diego (San Diego Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 88
(31) 		90
(32) 		99
(37) 		98
(37) 		98
(37) 		101
(38) 		100
(38) 		98
(37) 		111
(44) 		107
(42) 		100
(38) 		88
(31) 		111
(44)
Mean daily maximum °F (°C) 65.1
(18.4) 		65.0
(18.3) 		65.6
(18.7) 		67.5
(19.7) 		68.5
(20.3) 		70.8
(21.6) 		74.6
(23.7) 		76.4
(24.7) 		75.9
(24.4) 		72.8
(22.7) 		69.0
(20.6) 		64.7
(18.2) 		69.7
(20.9)
Daily mean °F (°C) 57.1
(13.9) 		57.9
(14.4) 		59.4
(15.2) 		61.7
(16.5) 		64.0
(17.8) 		66.4
(19.1) 		70.0
(21.1) 		71.6
(22.0) 		70.6
(21.4) 		66.7
(19.3) 		61.3
(16.3) 		56.5
(13.6) 		63.6
(17.6)
Mean daily minimum °F (°C) 49.0
(9.4) 		50.7
(10.4) 		53.2
(11.8) 		55.9
(13.3) 		59.4
(15.2) 		62.0
(16.7) 		65.4
(18.6) 		66.7
(19.3) 		65.2
(18.4) 		60.6
(15.9) 		53.6
(12.0) 		48.4
(9.1) 		57.5
(14.2)
Record low °F (°C) 25
(−4) 		34
(1) 		36
(2) 		39
(4) 		45
(7) 		50
(10) 		54
(12) 		54
(12) 		50
(10) 		43
(6) 		36
(2) 		32
(0) 		25
(−4)
Average rainfall inches (mm) 1.98
(50) 		2.27
(58) 		1.81
(46) 		0.78
(20) 		0.12
(3.0) 		0.07
(1.8) 		0.03
(0.76) 		0.02
(0.51) 		0.15
(3.8) 		0.57
(14) 		1.01
(26) 		1.53
(39) 		10.34
(263)
Average rainy days (≥ 0.01 in) 6.7 7.1 6.5 4.0 1.4 0.8 0.7 0.4 1.2 2.8 4.1 5.8 41.5
Average relative humidity (%) 63.1 65.7 67.3 67.0 70.6 74.0 74.6 74.1 72.7 69.4 66.3 63.7 69.0
Mean monthly sunshine hours 239.3 227.4 261.0 276.2 250.5 242.4 304.7 295.0 253.3 243.4 230.1 231.3 3,054.6
Percent possible sunshine 75 74 70 71 58 57 70 71 68 69 73 74 69
Source: NOAA (sun and relative humidity 1961–1990)[21][22][23]
Climate data for St. Louis (Lambert–St. Louis Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 77
(25) 		85
(29) 		92
(33) 		93
(34) 		98
(37) 		108
(42) 		115
(46) 		110
(43) 		104
(40) 		94
(34) 		86
(30) 		76
(24) 		115
(46)
Mean daily maximum °F (°C) 39.9
(4.4) 		45.0
(7.2) 		55.9
(13.3) 		67.4
(19.7) 		76.3
(24.6) 		85.1
(29.5) 		89.1
(31.7) 		87.9
(31.1) 		80.2
(26.8) 		68.5
(20.3) 		55.5
(13.1) 		42.5
(5.8) 		66.1
(18.9)
Mean daily minimum °F (°C) 23.7
(−4.6) 		27.6
(−2.4) 		36.6
(2.6) 		47.2
(8.4) 		57.2
(14.0) 		66.8
(19.3) 		71.0
(21.7) 		69.4
(20.8) 		60.6
(15.9) 		49.0
(9.4) 		38.1
(3.4) 		26.9
(−2.8) 		47.8
(8.8)
Record low °F (°C) −22
(−30) 		−18
(−28) 		−5
(−21) 		20
(−7) 		31
(−1) 		43
(6) 		51
(11) 		47
(8) 		32
(0) 		21
(−6) 		1
(−17) 		−16
(−27) 		−22
(−30)
Average precipitation inches (mm) 2.40
(61) 		2.24
(57) 		3.32
(84) 		3.69
(94) 		4.72
(120) 		4.28
(109) 		4.11
(104) 		2.99
(76) 		3.13
(80) 		3.33
(85) 		3.91
(99) 		2.84
(72) 		40.96
(1,040)
Average snowfall inches (cm) 5.6
(14) 		4.3
(11) 		2.3
(5.8) 		0.4
(1.0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.7
(1.8) 		4.4
(11) 		17.7
(45)
Average precipitation days (≥ 0.01 in) 8.9 8.0 10.3 11.3 11.9 10.0 8.9 8.2 7.4 8.7 9.6 9.4 112.6
Average snowy days (≥ 0.1 in) 4.7 3.4 1.7 0.3 0 0 0 0 0 0 0.7 3.7 14.5
Average relative humidity (%) 73.0 72.0 68.3 63.5 66.5 67.1 68.0 70.0 71.6 68.7 72.2 75.8 69.7
Mean monthly sunshine hours 161.2 158.3 198.3 223.5 266.5 291.9 308.9 269.8 236.1 208.4 140.9 129.9 2,593.7
Percent possible sunshine 53 53 53 56 60 66 68 64 63 60 47 44 58
Source: NOAA (relative humidity and sun 1961−1990)[24] [1][3]
Climate data for Tampa (Tampa Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 86
(30) 		88
(31) 		92
(33) 		93
(34) 		98
(37) 		99
(37) 		98
(37) 		98
(37) 		96
(36) 		95
(35) 		90
(32) 		86
(30) 		99
(37)
Mean daily maximum °F (°C) 69.9
(21.1) 		72.5
(22.5) 		76.3
(24.6) 		81.0
(27.2) 		87.2
(30.7) 		89.6
(32.0) 		90.1
(32.3) 		90.2
(32.3) 		88.9
(31.6) 		84.3
(29.1) 		78.0
(25.6) 		72.0
(22.2) 		81.7
(27.6)
Mean daily minimum °F (°C) 51.6
(10.9) 		54.4
(12.4) 		58.2
(14.6) 		63.0
(17.2) 		69.7
(20.9) 		74.8
(23.8) 		75.9
(24.4) 		76.2
(24.6) 		74.5
(23.6) 		68.0
(20.0) 		60.3
(15.7) 		54.2
(12.3) 		65.1
(18.4)
Record low °F (°C) 21
(−6) 		22
(−6) 		29
(−2) 		38
(3) 		49
(9) 		53
(12) 		63
(17) 		66
(19) 		54
(12) 		40
(4) 		23
(−5) 		18
(−8) 		18
(−8)
Average rainfall inches (mm) 2.23
(57) 		2.81
(71) 		3.03
(77) 		2.03
(52) 		2.10
(53) 		6.68
(170) 		7.07
(180) 		7.77
(197) 		6.30
(160) 		2.26
(57) 		1.55
(39) 		2.47
(63) 		46.30
(1,176)
Average rainy days (≥ 0.01 inch) 6.8 6.6 6.6 4.9 5.5 12.7 15.9 16.0 12.2 6.5 5.1 5.8 104.6
Average relative humidity (%) 74.9 73.0 71.8 69.0 69.8 74.4 76.6 78.4 77.6 74.2 75.0 75.0 74.1
Mean monthly sunshine hours 199.9 202.7 267.5 299.1 314.5 277.8 265.3 249.5 223.0 233.9 201.7 191.6 2,926.5
Percent possible sunshine 61 65 72 78 75 67 62 61 60 66 62 60 66
Source: NOAA (relative humidity and sun 1961−1990)[1][2][3] Weather Channel[10]
Climate data for Baltimore
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °F (°C) 42.4
(5.8) 		45.7
(7.6) 		53.9
(12.2) 		65.5
(18.6) 		75.2
(24.0) 		85.0
(29.4) 		89.0
(31.7) 		87.0
(30.6) 		80.3
(26.8) 		68.4
(20.2) 		57.7
(14.3) 		46.1
(7.8) 		66.4
(19.1)
Mean daily minimum °F (°C) 29.2
(−1.6) 		31.4
(−0.3) 		38.8
(3.8) 		47.6
(8.7) 		56.9
(13.8) 		67.1
(19.5) 		72.5
(22.5) 		70.9
(21.6) 		63.8
(17.7) 		51.8
(11.0) 		42.9
(6.1) 		32.8
(0.4) 		50.5
(10.3)
Average precipitation inches (mm) 2.92
(74) 		2.60
(66) 		3.86
(98) 		3.22
(82) 		3.49
(89) 		3.27
(83) 		4.62
(117) 		3.39
(86) 		4.09
(104) 		3.05
(77) 		2.97
(75) 		3.41
(87) 		40.89
(1,038)
Average snowfall inches (cm) 6.8
(17) 		8.0
(20) 		1.9
(4.8) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.4
(1.0) 		3.0
(7.6) 		20.1
(51)
Average precipitation days (≥ 0.01 in) 9.5 8.4 10.5 11.1 11.2 10.8 10.7 9.2 8.9 8.3 8.8 9.9 117.3
Average snowy days (≥ 0.1 in) 3.5 2.8 1.1 0.1 0 0 0 0 0 0 0.3 1.7 9.5
Average relative humidity (%) 63.2 61.3 59.2 58.9 66.1 68.4 69.1 71.1 71.3 69.5 66.5 65.5 65.8
Mean monthly sunshine hours 155.4 164.0 215.0 230.7 254.5 277.3 290.1 264.4 221.8 205.5 158.5 144.5 2,581.7
Percent possible sunshine 51 54 58 58 57 62 64 62 59 59 52 49 58
Source: NOAA (relative humidity and sun 1961–1990)[25][26][27][28][3]
Climate data for Denver (Denver Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 76
(24) 		77
(25) 		84
(29) 		90
(32) 		95
(35) 		105
(41) 		105
(41) 		105
(41) 		97
(36) 		90
(32) 		80
(27) 		79
(26) 		105
(41)
Mean daily maximum °F (°C) 44.0
(6.7) 		46.2
(7.9) 		54.4
(12.4) 		61.5
(16.4) 		71.5
(21.9) 		82.4
(28.0) 		89.4
(31.9) 		87.2
(30.7) 		78.5
(25.8) 		65.3
(18.5) 		52.1
(11.2) 		42.8
(6.0) 		64.6
(18.1)
Daily mean °F (°C) 30.7
(−0.7) 		32.5
(0.3) 		40.4
(4.7) 		47.4
(8.6) 		57.1
(13.9) 		67.4
(19.7) 		74.2
(23.4) 		72.5
(22.5) 		63.4
(17.4) 		50.9
(10.5) 		38.3
(3.5) 		30.0
(−1.1) 		50.4
(10.2)
Mean daily minimum °F (°C) 17.4
(−8.1) 		18.9
(−7.3) 		26.4
(−3.1) 		33.3
(0.7) 		42.7
(5.9) 		52.3
(11.3) 		58.9
(14.9) 		57.9
(14.4) 		48.3
(9.1) 		36.6
(2.6) 		24.5
(−4.2) 		17.1
(−8.3) 		36.2
(2.3)
Record low °F (°C) −29
(−34) 		−25
(−32) 		−11
(−24) 		−2
(−19) 		19
(−7) 		30
(−1) 		42
(6) 		40
(4) 		17
(−8) 		−2
(−19) 		−18
(−28) 		−25
(−32) 		−29
(−34)
Average precipitation inches (mm) 0.41
(10) 		0.37
(9.4) 		0.92
(23) 		1.71
(43) 		2.12
(54) 		1.98
(50) 		2.16
(55) 		1.69
(43) 		0.96
(24) 		1.02
(26) 		0.61
(15) 		0.35
(8.9) 		14.30
(363)
Average snowfall inches (cm) 7.0
(18) 		5.7
(14) 		10.7
(27) 		6.8
(17) 		1.1
(2.8) 		0
(0) 		0
(0) 		0
(0) 		1.3
(3.3) 		4.0
(10) 		8.7
(22) 		8.5
(22) 		53.8
(137)
Average precipitation days (≥ 0.01 in) 4.1 5.3 5.9 9.1 9.4 8.4 8.3 8.6 6.5 5.3 4.7 4.1 79.7
Average snowy days (≥ 0.1 in) 5.0 5.3 5.8 4.1 0.6 0 0 0 0.5 1.8 4.9 5.3 33.3
Average relative humidity (%) 55.2 55.8 53.7 49.6 51.7 49.3 47.8 49.3 50.1 49.2 56.3 56.6 52.0
Mean monthly sunshine hours 215.3 211.1 255.6 276.2 290.0 315.3 325.0 306.4 272.3 249.2 194.3 195.9 3,106.6
Percent possible sunshine 72 70 69 69 65 70 71 72 73 72 65 67 70
Source: NOAA (sun 1961−1990)[1][29][30][3]
Climate data for Pittsburgh (Pittsburgh Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 75
(24) 		77
(25) 		84
(29) 		90
(32) 		95
(35) 		98
(37) 		103
(39) 		103
(39) 		102
(39) 		91
(33) 		82
(28) 		74
(23) 		103
(39)
Mean daily maximum °F (°C) 35.7
(2.1) 		39.3
(4.1) 		49.2
(9.6) 		61.7
(16.5) 		70.8
(21.6) 		79.1
(26.2) 		82.5
(28.1) 		81.4
(27.4) 		74.3
(23.5) 		62.6
(17.0) 		51.2
(10.7) 		39.4
(4.1) 		60.6
(15.9)
Mean daily minimum °F (°C) 21.1
(−6.1) 		23.0
(−5.0) 		30.0
(−1.1) 		40.2
(4.6) 		49.3
(9.6) 		58.4
(14.7) 		62.8
(17.1) 		61.5
(16.4) 		54.0
(12.2) 		42.9
(6.1) 		34.7
(1.5) 		25.3
(−3.7) 		41.9
(5.5)
Record low °F (°C) −22
(−30) 		−20
(−29) 		−5
(−21) 		11
(−12) 		26
(−3) 		34
(1) 		42
(6) 		39
(4) 		31
(−1) 		16
(−9) 		−1
(−18) 		−12
(−24) 		−22
(−30)
Average precipitation inches (mm) 2.70
(69) 		2.39
(61) 		2.95
(75) 		3.11
(79) 		3.95
(100) 		4.30
(109) 		3.83
(97) 		3.48
(88) 		3.11
(79) 		2.29
(58) 		3.23
(82) 		2.85
(72) 		38.19
(970)
Average snowfall inches (cm) 11.5
(29) 		10.2
(26) 		7.4
(19) 		1.5
(3.8) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.4
(1.0) 		2.1
(5.3) 		8.3
(21) 		41.4
(105)
Average precipitation days (≥ 0.01 in) 16.2 13.6 14.0 13.8 13.3 12.1 10.2 9.8 9.8 10.5 12.8 15.1 151.2
Average snowy days (≥ 0.1 in) 11.4 8.3 5.9 2.0 0 0 0 0 0 0.3 3.0 8.5 39.4
Average relative humidity (%) 69.9 67.3 64.1 59.8 63.4 66.2 68.8 71.2 72.0 68.3 70.2 71.9 67.8
Mean monthly sunshine hours 93.9 108.5 155.4 182.8 217.4 242.2 254.9 228.4 196.7 167.3 99.4 74.4 2,021.3
Percent possible sunshine 31 36 42 46 49 54 56 54 53 48 33 26 45
Source: NOAA (relative humidity and sun 1961–1990)[1][31][18]
Climate data for Portland, Oregon (Portland Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 66
(19) 		71
(22) 		80
(27) 		90
(32) 		100
(38) 		102
(39) 		107
(42) 		107
(42) 		105
(41) 		92
(33) 		73
(23) 		65
(18) 		107
(42)
Mean daily maximum °F (°C) 47.0
(8.3) 		51.3
(10.7) 		56.7
(13.7) 		61.4
(16.3) 		68.0
(20.0) 		73.5
(23.1) 		80.6
(27.0) 		81.1
(27.3) 		75.8
(24.3) 		63.8
(17.7) 		52.8
(11.6) 		45.6
(7.6) 		63.1
(17.3)
Daily mean °F (°C) 41.4
(5.2) 		43.8
(6.6) 		48.2
(9.0) 		52.3
(11.3) 		58.3
(14.6) 		63.6
(17.6) 		69.2
(20.7) 		69.5
(20.8) 		64.5
(18.1) 		54.9
(12.7) 		46.6
(8.1) 		40.4
(4.7) 		54.4
(12.5)
Mean daily minimum °F (°C) 35.8
(2.1) 		36.3
(2.4) 		39.6
(4.2) 		43.1
(6.2) 		48.6
(9.2) 		53.6
(12.0) 		57.8
(14.3) 		58.0
(14.4) 		53.1
(11.7) 		46.0
(7.8) 		40.5
(4.7) 		35.2
(1.8) 		45.6
(7.6)
Record low °F (°C) −2
(−19) 		−3
(−19) 		19
(−7) 		29
(−2) 		29
(−2) 		39
(4) 		43
(6) 		44
(7) 		34
(1) 		26
(−3) 		13
(−11) 		6
(−14) 		−3
(−19)
Average precipitation inches (mm) 4.88
(124) 		3.66
(93) 		3.68
(93) 		2.73
(69) 		2.47
(63) 		1.70
(43) 		0.65
(17) 		0.67
(17) 		1.47
(37) 		3.00
(76) 		5.63
(143) 		5.49
(139) 		36.03
(915)
Average snowfall inches (cm) 0.5
(1.3) 		2.1
(5.3) 		0.2
(0.51) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.2
(0.51) 		1.3
(3.3) 		4.3
(11)
Average precipitation days (≥ 0.01 in) 18.0 14.9 17.6 16.4 13.6 9.2 4.1 3.9 6.7 12.5 19.0 18.6 154.5
Average snowy days (≥ 0.1 in) 0.7 1.5 0.2 0 0 0 0 0 0 0 0.5 1.5 4.4
Average relative humidity (%) 80.9 78.0 74.6 71.6 68.7 65.8 62.8 64.8 69.4 77.9 81.5 82.7 73.2
Mean monthly sunshine hours 85.6 116.4 191.1 221.1 276.1 290.2 331.9 298.1 235.7 151.7 79.3 63.7 2,340.9
Percent possible sunshine 30 40 52 54 60 62 70 68 63 45 28 23 52
Source: NOAA (relative humidity and sun 1961–1990)[17][2][18]
Climate data for Sacramento (Sacramento Executive Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 76
(24) 		76
(24) 		88
(31) 		95
(35) 		105
(41) 		115
(46) 		114
(46) 		110
(43) 		108
(42) 		104
(40) 		87
(31) 		73
(23) 		115
(46)
Mean daily maximum °F (°C) 53.8
(12.1) 		60.3
(15.7) 		65.1
(18.4) 		71.1
(21.7) 		79.9
(26.6) 		87.1
(30.6) 		92.1
(33.4) 		91.2
(32.9) 		87.2
(30.7) 		77.6
(25.3) 		63.8
(17.7) 		53.9
(12.2) 		73.6
(23.1)
Daily mean °F (°C) 46.3
(7.9) 		50.8
(10.4) 		54.6
(12.6) 		58.7
(14.8) 		65.5
(18.6) 		71.4
(21.9) 		75.2
(24.0) 		74.6
(23.7) 		71.4
(21.9) 		63.9
(17.7) 		53.3
(11.8) 		46.2
(7.9) 		61.0
(16.1)
Mean daily minimum °F (°C) 38.8
(3.8) 		41.4
(5.2) 		44.1
(6.7) 		46.2
(7.9) 		51.1
(10.6) 		55.8
(13.2) 		58.4
(14.7) 		58.0
(14.4) 		55.7
(13.2) 		50.2
(10.1) 		42.8
(6.0) 		38.4
(3.6) 		48.4
(9.1)
Record low °F (°C) 20
(−7) 		23
(−5) 		26
(−3) 		31
(−1) 		34
(1) 		41
(5) 		48
(9) 		48
(9) 		42
(6) 		35
(2) 		26
(−3) 		18
(−8) 		18
(−8)
Average precipitation inches (mm) 3.64
(92) 		3.47
(88) 		2.75
(70) 		1.15
(29) 		0.68
(17) 		0.21
(5.3) 		0
(0) 		0.05
(1.3) 		0.29
(7.4) 		0.95
(24) 		2.08
(53) 		3.25
(83) 		18.25
(464)
Average precipitation days (≥ 0.01 in) 10.3 9.4 9.1 4.9 3.2 1.2 0 0.3 1.3 3.6 6.9 9.9 60.0
Average relative humidity (%) 83.3 76.8 71.6 64.5 58.9 55.0 53.2 55.7 57.0 63.1 75.6 82.9 66.5
Mean monthly sunshine hours 145.5 201.3 278.0 329.6 406.3 419.5 440.2 406.9 347.8 296.7 194.9 141.1 3,607.8
Percent possible sunshine 48 67 75 83 92 94 98 96 93 86 64 48 81
Source: NOAA (relative humidity and sun 1961–1990)[1][3]
Climate data for San Antonio (San Antonio Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 89
(32) 		100
(38) 		100
(38) 		101
(38) 		104
(40) 		107
(42) 		106
(41) 		110
(43) 		111
(44) 		99
(37) 		94
(34) 		90
(32) 		111
(44)
Mean daily maximum °F (°C) 62.9
(17.2) 		66.9
(19.4) 		73.5
(23.1) 		80.5
(26.9) 		87.0
(30.6) 		92.3
(33.5) 		94.6
(34.8) 		96.0
(35.6) 		90.3
(32.4) 		82.2
(27.9) 		72.2
(22.3) 		64.0
(17.8) 		80.2
(26.8)
Mean daily minimum °F (°C) 40.7
(4.8) 		44.2
(6.8) 		50.8
(10.4) 		58.1
(14.5) 		66.8
(19.3) 		72.6
(22.6) 		74.6
(23.7) 		74.7
(23.7) 		69.1
(20.6) 		60.1
(15.6) 		50.1
(10.1) 		41.7
(5.4) 		58.6
(14.8)
Record low °F (°C) 0
(−18) 		4
(−16) 		19
(−7) 		31
(−1) 		42
(6) 		48
(9) 		60
(16) 		57
(14) 		41
(5) 		27
(−3) 		21
(−6) 		6
(−14) 		0
(−18)
Average precipitation inches (mm) 1.76
(45) 		1.79
(45) 		2.31
(59) 		2.10
(53) 		4.01
(102) 		4.14
(105) 		2.74
(70) 		2.09
(53) 		3.03
(77) 		4.11
(104) 		2.28
(58) 		1.91
(49) 		32.27
(820)
Average snowfall inches (cm) 0.7
(1.8) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.7
(1.8)
Average precipitation days (≥ 0.01 in) 7.0 7.2 8.8 6.4 8.5 7.5 5.2 4.7 6.6 6.9 6.7 7.5 83.0
Average snowy days (≥ 0.1 in) 0.2 0.2 0 0 0 0 0 0 0 0 0 0 0.4
Average relative humidity (%) 67.1 65.2 63.2 66.3 70.5 68.8 65.0 64.7 68.0 67.2 68.3 68.0 66.9
Mean monthly sunshine hours 159.4 169.7 215.5 209.7 221.8 275.9 308.8 293.9 234.9 218.0 171.9 149.7 2,629.2
Percent possible sunshine 49 54 58 54 52 66 72 72 63 61 54 47 59
Source: NOAA (relative humidity and sun 1961–1990)[1][2][3], The Weather Channel[10]
Climate data for Orlando (Orlando Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 88
(31) 		90
(32) 		97
(36) 		99
(37) 		102
(39) 		101
(38) 		101
(38) 		101
(38) 		103
(39) 		98
(37) 		93
(34) 		95
(35) 		103
(39)
Mean daily maximum °F (°C) 71.2
(21.8) 		73.9
(23.3) 		78.0
(25.6) 		82.5
(28.1) 		88.1
(31.2) 		90.7
(32.6) 		91.8
(33.2) 		91.6
(33.1) 		89.5
(31.9) 		84.6
(29.2) 		78.4
(25.8) 		72.8
(22.7) 		82.8
(28.2)
Mean daily minimum °F (°C) 49.2
(9.6) 		52.1
(11.2) 		55.8
(13.2) 		60.0
(15.6) 		66.4
(19.1) 		72.0
(22.2) 		73.6
(23.1) 		74.1
(23.4) 		72.7
(22.6) 		66.4
(19.1) 		58.6
(14.8) 		52.4
(11.3) 		62.8
(17.1)
Record low °F (°C) 19
(−7) 		19
(−7) 		25
(−4) 		37
(3) 		47
(8) 		53
(12) 		64
(18) 		63
(17) 		50
(10) 		38
(3) 		28
(−2) 		18
(−8) 		18
(−8)
Average rainfall inches (mm) 2.35
(60) 		2.38
(60) 		3.77
(96) 		2.68
(68) 		3.45
(88) 		7.58
(193) 		7.27
(185) 		7.13
(181) 		6.06
(154) 		3.31
(84) 		2.17
(55) 		2.58
(66) 		50.73
(1,289)
Average rainy days (≥ 0.01 in) 6.6 6.8 7.4 6.2 7.5 15.6 16.3 16.6 13.2 8.0 6.3 6.6 117.1
Average relative humidity (%) 73.1 71.0 70.3 67.2 70.5 76.4 77.9 79.4 79.1 74.9 74.8 74.5 74.1
Source: NOAA (relative humidity 1961–1990)[1][2][32]
Climate data for Cincinnati (Cincinnati/Northern Kentucky Int'l)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 77
(25) 		76
(24) 		88
(31) 		90
(32) 		95
(35) 		102
(39) 		108
(42) 		103
(39) 		102
(39) 		91
(33) 		81
(27) 		75
(24) 		108
(42)
Mean daily maximum °F (°C) 38.7
(3.7) 		42.9
(6.1) 		53.2
(11.8) 		64.7
(18.2) 		73.7
(23.2) 		82.1
(27.8) 		85.6
(29.8) 		84.9
(29.4) 		78.1
(25.6) 		66.2
(19.0) 		54.0
(12.2) 		41.6
(5.3) 		63.9
(17.7)
Mean daily minimum °F (°C) 23.0
(−5.0) 		26.0
(−3.3) 		34.0
(1.1) 		43.7
(6.5) 		53.2
(11.8) 		62.0
(16.7) 		66.1
(18.9) 		64.8
(18.2) 		57.0
(13.9) 		45.5
(7.5) 		36.2
(2.3) 		26.6
(−3.0) 		44.9
(7.2)
Record low °F (°C) −25
(−32) 		−17
(−27) 		−11
(−24) 		15
(−9) 		27
(−3) 		39
(4) 		47
(8) 		43
(6) 		31
(−1) 		16
(−9) 		0
(−18) 		−20
(−29) 		−25
(−32)
Average precipitation inches (mm) 3.00
(76) 		2.81
(71) 		3.96
(101) 		3.89
(99) 		4.93
(125) 		4.03
(102) 		3.76
(96) 		3.41
(87) 		2.63
(67) 		3.30
(84) 		3.43
(87) 		3.37
(86) 		42.52
(1,080)
Average snowfall inches (cm) 6.5
(17) 		6.5
(17) 		3.0
(7.6) 		0.5
(1.3) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.4
(1.0) 		0.4
(1.0) 		4.8
(12) 		22.1
(56)
Average precipitation days (≥ 0.01 in) 12.4 11.6 12.5 12.7 12.8 11.5 10.6 9.1 7.7 8.4 10.6 12.5 132.4
Average snowy days (≥ 0.1 in) 6.5 5.4 2.4 0.6 0.1 0 0 0 0 0.1 0.8 4.9 20.8
Average relative humidity (%) 72.2 70.1 67.0 62.8 66.9 69.2 71.5 72.3 72.7 69.2 71.0 73.8 69.9
Mean monthly sunshine hours 120.8 128.4 170.1 211.0 249.9 275.5 277.0 261.5 234.4 188.8 118.7 99.3 2,335.4
Percent possible sunshine 40 43 46 53 56 62 61 62 63 55 39 34 52
Source: NOAA (relative humidity and sun 1961–1990)[1][2][33][3]
Climate data for Cleveland (Cleveland Hopkins Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 73
(23) 		74
(23) 		83
(28) 		88
(31) 		92
(33) 		104
(40) 		103
(39) 		102
(39) 		101
(38) 		90
(32) 		82
(28) 		77
(25) 		104
(40)
Mean daily maximum °F (°C) 34.4
(1.3) 		37.5
(3.1) 		46.6
(8.1) 		59.1
(15.1) 		69.5
(20.8) 		78.6
(25.9) 		82.6
(28.1) 		80.8
(27.1) 		73.9
(23.3) 		62.3
(16.8) 		50.8
(10.4) 		38.3
(3.5) 		59.6
(15.3)
Mean daily minimum °F (°C) 21.7
(−5.7) 		23.6
(−4.7) 		30.2
(−1.0) 		40.4
(4.7) 		50.1
(10.1) 		59.8
(15.4) 		64.3
(17.9) 		63.1
(17.3) 		56.0
(13.3) 		45.4
(7.4) 		36.9
(2.7) 		26.4
(−3.1) 		43.3
(6.3)
Record low °F (°C) −20
(−29) 		−17
(−27) 		−5
(−21) 		10
(−12) 		25
(−4) 		31
(−1) 		41
(5) 		38
(3) 		32
(0) 		19
(−7) 		0
(−18) 		−15
(−26) 		−20
(−29)
Average precipitation inches (mm) 2.72
(69) 		2.34
(59) 		2.93
(74) 		3.49
(89) 		3.66
(93) 		3.43
(87) 		3.46
(88) 		3.51
(89) 		3.81
(97) 		3.07
(78) 		3.62
(92) 		3.10
(79) 		39.14
(994)
Average snowfall inches (cm) 18.7
(47) 		14.9
(38) 		12.6
(32) 		3.3
(8.4) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.2
(0.51) 		4.3
(11) 		14.1
(36) 		68.1
(173)
Average precipitation days (≥ 0.01 in) 17.1 13.9 14.2 14.4 13.2 11.1 10.3 9.8 10.0 11.4 13.5 16.0 154.9
Average snowy days (≥ 0.1 in) 13.5 10.1 7.5 2.3 0 0 0 0 0 0.2 3.3 10.0 46.9
Average relative humidity (%) 73.3 73.0 70.4 66.1 67.3 69.0 69.8 73.1 73.7 70.8 71.9 74.1 71.0
Mean monthly sunshine hours 101.0 122.3 167.0 216.0 263.6 294.6 307.2 262.2 219.0 169.5 89.8 67.8 2,280
Percent possible sunshine 34 41 45 54 59 65 67 61 59 49 30 24 51
Source: NOAA (relative humidity and sun 1961−1990)[1][34][18]
Climate data for Kansas City (Downtown Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 76
(24) 		83
(28) 		89
(32) 		94
(34) 		103
(39) 		108
(42) 		112
(44) 		113
(45) 		109
(43) 		98
(37) 		83
(28) 		74
(23) 		113
(45)
Mean daily maximum °F (°C) 39.5
(4.2) 		44.6
(7.0) 		56.2
(13.4) 		66.7
(19.3) 		75.9
(24.4) 		85.0
(29.4) 		90.1
(32.3) 		88.6
(31.4) 		80.0
(26.7) 		67.8
(19.9) 		54.2
(12.3) 		41.8
(5.4) 		65.9
(18.8)
Mean daily minimum °F (°C) 22.4
(−5.3) 		26.3
(−3.2) 		35.8
(2.1) 		46.6
(8.1) 		57.1
(13.9) 		66.7
(19.3) 		72.0
(22.2) 		70.2
(21.2) 		60.5
(15.8) 		48.9
(9.4) 		36.6
(2.6) 		25.6
(−3.6) 		47.4
(8.6)
Record low °F (°C) −14
(−26) 		−13
(−25) 		−3
(−19) 		16
(−9) 		32
(0) 		44
(7) 		52
(11) 		48
(9) 		34
(1) 		21
(−6) 		5
(−15) 		−19
(−28) 		−19
(−28)
Average precipitation inches (mm) 1.14
(29) 		1.48
(38) 		2.15
(55) 		3.71
(94) 		5.13
(130) 		5.52
(140) 		3.97
(101) 		4.39
(112) 		4.16
(106) 		3.52
(89) 		2.14
(54) 		1.75
(44) 		39.06
(992)
Average snowfall inches (cm) 4.1
(10) 		3.2
(8.1) 		0.9
(2.3) 		0.2
(0.51) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.3
(0.76) 		0.3
(0.76) 		4.4
(11) 		13.4
(34)
Average precipitation days (≥ 0.01 in) 4.8 5.3 7.6 9.4 11.0 10.2 7.9 7.5 8.1 7.5 6.1 5.4 90.8
Average snowy days (≥ 0.1 in) 2.5 2.1 0.6 0.1 0 0 0 0 0 0.1 0.4 2.5 8.3
Source: NOAA[1][35][36]
Climate data for Las Vegas (McCarran Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 77
(25) 		87
(31) 		92
(33) 		99
(37) 		109
(43) 		117
(47) 		117
(47) 		116
(47) 		113
(45) 		103
(39) 		87
(31) 		78
(26) 		117
(47)
Mean daily maximum °F (°C) 58.0
(14.4) 		62.5
(16.9) 		70.3
(21.3) 		78.3
(25.7) 		88.9
(31.6) 		98.7
(37.1) 		104.2
(40.1) 		102.0
(38.9) 		94.0
(34.4) 		80.6
(27.0) 		66.3
(19.1) 		56.6
(13.7) 		80.1
(26.7)
Mean daily minimum °F (°C) 39.4
(4.1) 		43.4
(6.3) 		49.4
(9.7) 		56.1
(13.4) 		65.8
(18.8) 		74.6
(23.7) 		80.9
(27.2) 		79.3
(26.3) 		71.1
(21.7) 		58.5
(14.7) 		46.5
(8.1) 		38.7
(3.7) 		58.7
(14.8)
Record low °F (°C) 8
(−13) 		16
(−9) 		19
(−7) 		31
(−1) 		38
(3) 		48
(9) 		56
(13) 		54
(12) 		43
(6) 		26
(−3) 		15
(−9) 		11
(−12) 		8
(−13)
Average precipitation inches (mm) 0.54
(14) 		0.76
(19) 		0.44
(11) 		0.15
(3.8) 		0.12
(3.0) 		0.07
(1.8) 		0.40
(10) 		0.33
(8.4) 		0.25
(6.4) 		0.27
(6.9) 		0.36
(9.1) 		0.50
(13) 		4.19
(106)
Average precipitation days (≥ 0.01 in) 3.1 4.0 2.9 1.6 1.2 0.6 2.5 2.6 1.6 1.7 1.7 3.0 26.5
Average relative humidity (%) 45.1 39.6 33.1 25.0 21.3 16.5 21.1 25.6 25.0 28.8 37.2 45.0 30.3
Mean monthly sunshine hours 245.2 246.7 314.6 346.1 388.1 401.7 390.9 368.5 337.1 304.4 246.0 236.0 3,825.3
Percent possible sunshine 79 81 85 88 89 92 88 88 91 87 80 78 86
Source: NOAA (relative humidity and sun 1961–1990)[1][2][3]
Climate data for San Jose
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		81
(27) 		89
(32) 		95
(35) 		102
(39) 		109
(43) 		108
(42) 		105
(41) 		106
(41) 		101
(38) 		85
(29) 		79
(26) 		109
(43)
Mean daily maximum °F (°C) 58.1
(14.5) 		61.9
(16.6) 		65.7
(18.7) 		69.3
(20.7) 		74.3
(23.5) 		79.1
(26.2) 		81.9
(27.7) 		81.9
(27.7) 		80.1
(26.7) 		74.0
(23.3) 		64.3
(17.9) 		58.0
(14.4) 		70.7
(21.5)
Daily mean °F (°C) 50.1
(10.1) 		53.3
(11.8) 		56.2
(13.4) 		58.9
(14.9) 		63.4
(17.4) 		67.5
(19.7) 		70.0
(21.1) 		70.1
(21.2) 		68.5
(20.3) 		63.2
(17.3) 		55.1
(12.8) 		50.0
(10.0) 		60.5
(15.8)
Mean daily minimum °F (°C) 42.0
(5.6) 		44.7
(7.1) 		46.6
(8.1) 		48.6
(9.2) 		52.4
(11.3) 		56.0
(13.3) 		58.1
(14.5) 		58.3
(14.6) 		56.8
(13.8) 		52.5
(11.4) 		46.0
(7.8) 		41.9
(5.5) 		50.3
(10.2)
Record low °F (°C) 18
(−8) 		24
(−4) 		25
(−4) 		26
(−3) 		32
(0) 		33
(1) 		40
(4) 		39
(4) 		35
(2) 		30
(−1) 		21
(−6) 		19
(−7) 		18
(−8)
Average rainfall inches (mm) 3.07
(78) 		3.11
(79) 		2.54
(65) 		1.18
(30) 		0.51
(13) 		0.10
(2.5) 		0.02
(0.51) 		0.02
(0.51) 		0.18
(4.6) 		0.80
(20) 		1.68
(43) 		2.61
(66) 		15.82
(402.12)
Average rainy days (≥ 0.01 in) 10.2 10.3 9.4 5.6 3.2 0.8 0.2 0.3 1.3 3.2 7.2 10.2 61.9
Source: NOAA[8][37]
Climate data for Columbus (Port Columbus Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 74
(23) 		75
(24) 		85
(29) 		90
(32) 		96
(36) 		102
(39) 		106
(41) 		103
(39) 		100
(38) 		91
(33) 		80
(27) 		76
(24) 		106
(41)
Mean daily maximum °F (°C) 36.5
(2.5) 		40.6
(4.8) 		51.1
(10.6) 		63.5
(17.5) 		72.9
(22.7) 		81.6
(27.6) 		84.9
(29.4) 		83.7
(28.7) 		77.0
(25.0) 		65.1
(18.4) 		52.6
(11.4) 		40.1
(4.5) 		62.6
(17.0)
Mean daily minimum °F (°C) 22.6
(−5.2) 		25.0
(−3.9) 		32.7
(0.4) 		42.6
(5.9) 		52.2
(11.2) 		61.5
(16.4) 		65.5
(18.6) 		64.1
(17.8) 		56.5
(13.6) 		45.0
(7.2) 		36.1
(2.3) 		26.8
(−2.9) 		44.3
(6.8)
Record low °F (°C) −22
(−30) 		−20
(−29) 		−6
(−21) 		14
(−10) 		25
(−4) 		35
(2) 		43
(6) 		39
(4) 		31
(−1) 		17
(−8) 		−5
(−21) 		−17
(−27) 		−22
(−30)
Average precipitation inches (mm) 2.73
(69) 		2.25
(57) 		3.02
(77) 		3.40
(86) 		4.17
(106) 		4.01
(102) 		4.79
(122) 		3.32
(84) 		2.84
(72) 		2.61
(66) 		3.20
(81) 		2.97
(75) 		39.31
(998)
Average snowfall inches (cm) 9.2
(23) 		6.1
(15) 		4.2
(11) 		1.1
(2.8) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.2
(0.51) 		0.9
(2.3) 		5.0
(13) 		26.7
(68)
Average precipitation days (≥ 0.01 in) 14.0 11.4 12.8 13.7 13.9 11.2 10.6 9.2 8.4 9.4 11.4 13.2 139.2
Average snowy days (≥ 0.1 in) 9.1 6.6 4.5 1.2 0 0 0 0 0 0.1 1.8 6.5 29.8
Average relative humidity (%) 71.4 69.5 64.5 62.5 66.5 68.5 70.6 72.8 72.8 69.3 71.8 74.1 69.5
Mean monthly sunshine hours 110.6 126.3 162.0 201.8 243.4 258.1 260.9 235.9 212.0 183.1 104.2 84.3 2,182.6
Percent possible sunshine 36 42 44 51 56 60 60 60 61 56 37 31 50
Source: NOAA (sun 1961–1990)[38][1][33][3]
Climate data for Charlotte (Charlotte/Douglas Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		82
(28) 		91
(33) 		96
(36) 		98
(37) 		104
(40) 		104
(40) 		104
(40) 		104
(40) 		98
(37) 		85
(29) 		80
(27) 		104
(40)
Mean daily maximum °F (°C) 50.7
(10.4) 		55.0
(12.8) 		63.1
(17.3) 		71.9
(22.2) 		78.9
(26.1) 		86.0
(30.0) 		89.0
(31.7) 		87.5
(30.8) 		81.3
(27.4) 		71.8
(22.1) 		62.4
(16.9) 		52.9
(11.6) 		70.9
(21.6)
Mean daily minimum °F (°C) 29.6
(−1.3) 		32.7
(0.4) 		39.3
(4.1) 		46.9
(8.3) 		55.8
(13.2) 		64.5
(18.1) 		68.1
(20.1) 		67.2
(19.6) 		60.4
(15.8) 		48.8
(9.3) 		39.2
(4.0) 		31.9
(−0.1) 		48.7
(9.3)
Record low °F (°C) −5
(−21) 		−5
(−21) 		4
(−16) 		21
(−6) 		32
(0) 		45
(7) 		53
(12) 		50
(10) 		38
(3) 		24
(−4) 		11
(−12) 		−5
(−21) 		−5
(−21)
Average precipitation inches (mm) 3.41
(87) 		3.32
(84) 		4.01
(102) 		3.04
(77) 		3.18
(81) 		3.74
(95) 		3.68
(93) 		4.22
(107) 		3.24
(82) 		3.40
(86) 		3.14
(80) 		3.25
(83) 		41.63
(1,057)
Average snowfall inches (cm) 2.1
(5.3) 		1.2
(3.0) 		0.6
(1.5) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.1
(0.25) 		0.3
(0.76) 		4.3
(11)
Average precipitation days (≥ 0.01 in) 9.7 9.4 9.6 8.8 9.6 10.2 10.8 9.8 7.1 6.9 8.4 9.6 109.9
Average snowy days (≥ 0.1 in) 1.0 0.5 0.2 0 0 0 0 0 0 0 0 0.2 1.9
Average relative humidity (%) 65.7 61.8 61.5 59.3 66.9 69.6 72.2 73.5 73.3 69.9 67.6 67.3 67.4
Mean monthly sunshine hours 173.3 180.3 234.8 269.6 292.1 289.2 290.0 272.9 241.4 230.5 178.4 168.5 2,821
Percent possible sunshine 55 59 63 69 67 66 66 65 65 66 58 55 63
Source: NOAA (relative humidity and sun 1961–1990)[1][2][18]
Climate data for Indianapolis (Indianapolis Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 71
(22) 		76
(24) 		85
(29) 		90
(32) 		96
(36) 		104
(40) 		106
(41) 		103
(39) 		100
(38) 		91
(33) 		81
(27) 		74
(23) 		106
(41)
Mean daily maximum °F (°C) 35.6
(2.0) 		40.2
(4.6) 		51.7
(10.9) 		63.4
(17.4) 		72.8
(22.7) 		81.9
(27.7) 		85.0
(29.4) 		84.0
(28.9) 		77.6
(25.3) 		65.3
(18.5) 		52.2
(11.2) 		38.9
(3.8) 		62.4
(16.9)
Daily mean °F (°C) 28.1
(−2.2) 		32.1
(0.1) 		42.2
(5.7) 		53.0
(11.7) 		62.7
(17.1) 		72.0
(22.2) 		75.4
(24.1) 		74.2
(23.4) 		66.9
(19.4) 		55.0
(12.8) 		43.6
(6.4) 		31.6
(−0.2) 		53.1
(11.7)
Mean daily minimum °F (°C) 20.5
(−6.4) 		23.9
(−4.5) 		32.8
(0.4) 		42.7
(5.9) 		52.6
(11.4) 		62.1
(16.7) 		65.8
(18.8) 		64.4
(18.0) 		56.2
(13.4) 		44.7
(7.1) 		35.1
(1.7) 		24.4
(−4.2) 		43.8
(6.6)
Record low °F (°C) −27
(−33) 		−21
(−29) 		−7
(−22) 		18
(−8) 		28
(−2) 		37
(3) 		46
(8) 		41
(5) 		30
(−1) 		20
(−7) 		−5
(−21) 		−23
(−31) 		−27
(−33)
Average precipitation inches (mm) 2.66
(68) 		2.32
(59) 		3.56
(90) 		3.81
(97) 		5.05
(128) 		4.25
(108) 		4.55
(116) 		3.13
(80) 		3.12
(79) 		3.12
(79) 		3.70
(94) 		3.17
(81) 		42.44
(1,078)
Average snowfall inches (cm) 8.6
(22) 		6.5
(17) 		2.6
(6.6) 		0.2
(0.51) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.4
(1.0) 		0.7
(1.8) 		6.9
(18) 		25.9
(66)
Average precipitation days (≥ 0.01 in) 12.1 10.0 11.9 12.0 13.1 11.1 10.5 8.5 8.1 8.6 10.8 12.5 129.2
Average snowy days (≥ 0.1 in) 7.5 5.4 2.5 0.4 0 0 0 0 0 0.2 1.2 6.3 23.5
Average relative humidity (%) 75.0 73.6 69.9 65.6 67.1 68.4 72.8 75.4 74.4 71.6 75.5 78.0 72.3
Mean monthly sunshine hours 132.1 145.7 178.3 214.8 264.7 287.2 295.2 273.7 232.6 196.6 117.1 102.4 2,440.4
Percent possible sunshine 44 49 48 54 59 64 65 64 62 57 39 35 55
Source: NOAA (relative humidity and sun 1961–1990)[1][39][3]
Climate data for Austin (Camp Mabry)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 90
(32) 		99
(37) 		98
(37) 		99
(37) 		104
(40) 		109
(43) 		109
(43) 		112
(44) 		112
(44) 		100
(38) 		91
(33) 		90
(32) 		112
(44)
Mean daily maximum °F (°C) 61.5
(16.4) 		65.2
(18.4) 		72.2
(22.3) 		79.8
(26.6) 		86.5
(30.3) 		92.1
(33.4) 		95.6
(35.3) 		97.0
(36.1) 		90.5
(32.5) 		81.8
(27.7) 		71.4
(21.9) 		62.7
(17.1) 		79.7
(26.5)
Mean daily minimum °F (°C) 41.5
(5.3) 		44.8
(7.1) 		51.3
(10.7) 		58.6
(14.8) 		66.7
(19.3) 		72.3
(22.4) 		74.4
(23.6) 		74.6
(23.7) 		69.4
(20.8) 		60.6
(15.9) 		50.6
(10.3) 		42.3
(5.7) 		58.9
(14.9)
Record low °F (°C) −2
(−19) 		−1
(−18) 		18
(−8) 		30
(−1) 		40
(4) 		51
(11) 		57
(14) 		58
(14) 		41
(5) 		30
(−1) 		20
(−7) 		4
(−16) 		−2
(−19)
Average precipitation inches (mm) 2.22
(56) 		2.02
(51) 		2.76
(70) 		2.09
(53) 		4.44
(113) 		4.33
(110) 		1.88
(48) 		2.35
(60) 		2.99
(76) 		3.88
(99) 		2.96
(75) 		2.40
(61) 		34.32
(872)
Average snowfall inches (cm) 0.4
(1.0) 		0.2
(0.51) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 0.6
(1.5)
Average precipitation days (≥ 0.01 in) 7.4 7.4 9.2 7.1 8.9 7.7 5.4 4.9 6.7 7.5 7.5 7.8 87.5
Average snowy days (≥ 0.1 in) 0.3 0.2 0 0 0 0 0 0 0 0 0 0 0.5
Average relative humidity (%) 67.2 66.0 64.2 66.4 71.4 69.5 65.1 63.8 68.4 67.1 68.7 67.6 67.1
Mean monthly sunshine hours 163.8 169.3 205.9 205.8 227.1 285.5 317.2 297.9 233.8 215.6 168.3 153.5 2,643.7
Percent possible sunshine 51 54 55 53 54 68 74 73 63 61 53 48 60
Source: NOAA (relative humidity and sun 1961–1990)[1][2][3], Weather.com [40]
Climate data for Norfolk, Virginia (Norfolk Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °F (°C) 48.1
(8.9) 		50.9
(10.5) 		58.2
(14.6) 		67.6
(19.8) 		75.4
(24.1) 		83.5
(28.6) 		87.4
(30.8) 		85.1
(29.5) 		79.3
(26.3) 		70.1
(21.2) 		61.1
(16.2) 		52.1
(11.2) 		68.2
(20.1)
Mean daily minimum °F (°C) 32.7
(0.4) 		34.4
(1.3) 		40.5
(4.7) 		48.9
(9.4) 		57.9
(14.4) 		67.1
(19.5) 		71.9
(22.2) 		70.7
(21.5) 		65.3
(18.5) 		54.0
(12.2) 		44.6
(7.0) 		36.1
(2.3) 		52.0
(11.1)
Average precipitation inches (mm) 3.40
(86) 		3.12
(79) 		3.68
(93) 		3.41
(87) 		3.41
(87) 		4.26
(108) 		5.14
(131) 		5.52
(140) 		4.76
(121) 		3.42
(87) 		3.15
(80) 		3.26
(83) 		46.53
(1,182)
Average snowfall inches (cm) 2.4
(6.1) 		2.0
(5.1) 		0.2
(0.51) 		trace 0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 1.2
(3.0) 		5.8
(15)
Average precipitation days (≥ 0.01 in) 10.4 9.5 10.6 10.1 10.6 9.9 11.1 10.1 8.8 7.6 8.5 9.8 117.0
Average snowy days (≥ 0.1 in) 1.6 1.3 0.4 0.1 0 0 0 0 0 0 0 0.6 4.0
Average relative humidity (%) 66.3 65.6 64.6 62.8 68.8 70.6 73.3 75.2 74.4 72.1 68.5 67.0 69.1
Mean monthly sunshine hours 171.5 175.2 229.3 252.8 271.7 280.1 278.3 260.4 231.4 208.3 175.7 160.4 2,695.1
Percent possible sunshine 56 58 62 64 62 64 62 62 62 60 57 53 61
Source: NOAA (relative humidity and sun 1961–1990)[1][2][18]
Climate data for Providence (T. F. Green Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 69
(21) 		72
(22) 		90
(32) 		98
(37) 		96
(36) 		98
(37) 		102
(39) 		104
(40) 		100
(38) 		88
(31) 		81
(27) 		77
(25) 		104
(40)
Mean daily maximum °F (°C) 37.4
(3.0) 		40.3
(4.6) 		47.8
(8.8) 		58.6
(14.8) 		68.4
(20.2) 		77.5
(25.3) 		82.8
(28.2) 		81.4
(27.4) 		74.2
(23.4) 		63.3
(17.4) 		53.2
(11.8) 		42.3
(5.7) 		60.6
(15.9)
Mean daily minimum °F (°C) 21.0
(−6.1) 		23.6
(−4.7) 		30.0
(−1.1) 		39.6
(4.2) 		48.6
(9.2) 		58.4
(14.7) 		64.2
(17.9) 		63.2
(17.3) 		55.3
(12.9) 		43.9
(6.6) 		35.7
(2.1) 		26.3
(−3.2) 		42.5
(5.8)
Record low °F (°C) −13
(−25) 		−17
(−27) 		1
(−17) 		11
(−12) 		29
(−2) 		39
(4) 		48
(9) 		40
(4) 		32
(0) 		20
(−7) 		6
(−14) 		−12
(−24) 		−17
(−27)
Average precipitation inches (mm) 3.86
(98) 		3.29
(84) 		5.01
(127) 		4.36
(111) 		3.55
(90) 		3.64
(92) 		3.29
(84) 		3.60
(91) 		3.92
(100) 		3.93
(100) 		4.51
(115) 		4.22
(107) 		47.18
(1,198)
Average snowfall inches (cm) 9.0
(23) 		8.5
(22) 		5.5
(14) 		0.6
(1.5) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		1.5
(3.8) 		8.7
(22) 		33.8
(86)
Average precipitation days (≥ 0.01 in) 10.9 9.7 11.9 11.3 12.0 10.9 9.4 9.0 8.7 9.4 10.1 11.6 124.9
Average snowy days (≥ 0.1 in) 5.7 4.6 3.5 0.4 0 0 0 0 0 0 0.6 3.9 18.7
Average relative humidity (%) 63.9 63.0 62.9 61.4 66.6 70.1 71.0 72.5 73.0 70.2 68.9 67.0 67.5
Mean monthly sunshine hours 171.7 172.6 215.6 225.1 254.9 274.1 290.6 262.8 233.0 208.7 148.0 148.6 2,605.7
Percent possible sunshine 58 58 58 56 57 60 63 61 62 61 50 52 58
Source: NOAA (relative humidity and sun 1961–1990),[1][2][3] The Weather Channel[40]
Climate data for Nashville (Nashville Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 78
(26) 		84
(29) 		89
(32) 		91
(33) 		96
(36) 		109
(43) 		107
(42) 		106
(41) 		105
(41) 		94
(34) 		85
(29) 		79
(26) 		109
(43)
Mean daily maximum °F (°C) 46.9
(8.3) 		51.8
(11.0) 		61.0
(16.1) 		70.5
(21.4) 		78.2
(25.7) 		86.0
(30.0) 		89.3
(31.8) 		89.0
(31.7) 		82.4
(28.0) 		71.7
(22.1) 		60.3
(15.7) 		49.5
(9.7) 		69.7
(20.9)
Mean daily minimum °F (°C) 28.4
(−2.0) 		31.6
(−0.2) 		39.0
(3.9) 		47.5
(8.6) 		56.8
(13.8) 		65.4
(18.6) 		69.5
(20.8) 		68.4
(20.2) 		60.7
(15.9) 		48.9
(9.4) 		39.4
(4.1) 		31.3
(−0.4) 		48.9
(9.4)
Record low °F (°C) −17
(−27) 		−13
(−25) 		2
(−17) 		23
(−5) 		34
(1) 		42
(6) 		51
(11) 		47
(8) 		36
(2) 		26
(−3) 		−1
(−18) 		−10
(−23) 		−17
(−27)
Average precipitation inches (mm) 3.75
(95) 		3.94
(100) 		4.11
(104) 		4.00
(102) 		5.50
(140) 		4.14
(105) 		3.64
(92) 		3.17
(81) 		3.41
(87) 		3.04
(77) 		4.31
(109) 		4.24
(108) 		47.25
(1,200)
Average snowfall inches (cm) 2.6
(6.6) 		2.3
(5.8) 		0.9
(2.3) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 0
(0) 		0.5
(1.3) 		6.3
(16)
Average precipitation days (≥ 0.01 in) 10.3 10.3 10.7 10.8 11.7 10.0 10.2 8.4 7.5 8.0 9.8 11.2 118.9
Average snowy days (≥ 0.1 in) 2.1 2.3 0.7 0 0 0 0 0 0 0.1 0 1.0 6.2
Average relative humidity (%) 70.4 68.5 64.6 63.2 69.5 70.4 72.8 73.1 73.7 69.4 70.2 71.4 69.8
Mean monthly sunshine hours 139.6 145.2 191.3 231.5 261.8 277.7 279.0 262.1 226.4 216.8 148.1 130.6 2,510.1
Percent possible sunshine 45 48 52 59 60 64 63 63 61 62 48 43 56
Source: NOAA (relative humidity and sun 1961−1990),[1][2][3] Weather.com[40]
Climate data for Milwaukee (General Mitchell Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 63
(17) 		68
(20) 		84
(29) 		91
(33) 		94
(34) 		104
(40) 		105
(41) 		103
(39) 		99
(37) 		89
(32) 		77
(25) 		68
(20) 		105
(41)
Mean daily maximum °F (°C) 28.9
(−1.7) 		32.5
(0.3) 		42.4
(5.8) 		53.8
(12.1) 		64.9
(18.3) 		75.3
(24.1) 		80.1
(26.7) 		78.5
(25.8) 		71.3
(21.8) 		59.3
(15.2) 		46.0
(7.8) 		32.8
(0.4) 		55.5
(13.1)
Mean daily minimum °F (°C) 15.6
(−9.1) 		19.3
(−7.1) 		27.7
(−2.4) 		37.3
(2.9) 		46.5
(8.1) 		57.1
(13.9) 		63.5
(17.5) 		63.0
(17.2) 		54.9
(12.7) 		43.2
(6.2) 		32.0
(0.0) 		20.1
(−6.6) 		40.0
(4.4)
Record low °F (°C) −26
(−32) 		−26
(−32) 		−10
(−23) 		12
(−11) 		21
(−6) 		33
(1) 		40
(4) 		42
(6) 		28
(−2) 		15
(−9) 		−14
(−26) 		−22
(−30) 		−26
(−32)
Average precipitation inches (mm) 1.76
(45) 		1.65
(42) 		2.27
(58) 		3.56
(90) 		3.40
(86) 		3.90
(99) 		3.67
(93) 		3.97
(101) 		3.18
(81) 		2.65
(67) 		2.71
(69) 		2.04
(52) 		34.76
(883)
Average snowfall inches (cm) 14.7
(37) 		9.8
(25) 		7.0
(18) 		2.0
(5.1) 		0.1
(0.25) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0.3
(0.76) 		2.4
(6.1) 		10.6
(27) 		46.9
(119)
Average precipitation days (≥ 0.01 in) 11.4 9.7 11.4 12.1 11.4 10.4 9.8 9.5 8.8 10.0 11.3 10.9 126.7
Average snowy days (≥ 0.1 in) 9.8 7.5 5.6 1.7 0.1 0 0 0 0 0.3 2.5 7.8 35.3
Average relative humidity (%) 72.3 71.9 71.4 68.5 68.5 69.7 71.5 74.9 75.4 72.5 74.5 75.9 72.3
Mean monthly sunshine hours 140.2 151.5 185.4 213.5 275.5 304.5 321.1 281.2 215.1 178.0 112.8 104.8 2,483.6
Percent possible sunshine 48 51 50 53 61 66 69 65 57 52 38 37 56
Source: NOAA/NWS (relative humidity and sun 1961–1990)[1][2][18]
Climate data for Jacksonville (Jacksonville Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 85
(29) 		88
(31) 		91
(33) 		95
(35) 		100
(38) 		103
(39) 		104
(40) 		102
(39) 		99
(37) 		95
(35) 		88
(31) 		84
(29) 		104
(40)
Mean daily maximum °F (°C) 64.8
(18.2) 		68.2
(20.1) 		73.7
(23.2) 		79.2
(26.2) 		85.5
(29.7) 		89.9
(32.2) 		92.0
(33.3) 		90.9
(32.7) 		86.9
(30.5) 		80.4
(26.9) 		73.5
(23.1) 		66.6
(19.2) 		79.3
(26.3)
Mean daily minimum °F (°C) 41.4
(5.2) 		44.7
(7.1) 		49.7
(9.8) 		54.7
(12.6) 		62.7
(17.1) 		70.0
(21.1) 		72.6
(22.6) 		72.7
(22.6) 		69.5
(20.8) 		60.5
(15.8) 		50.9
(10.5) 		43.9
(6.6) 		57.8
(14.3)
Record low °F (°C) 7
(−14) 		10
(−12) 		23
(−5) 		31
(−1) 		45
(7) 		47
(8) 		61
(16) 		63
(17) 		48
(9) 		33
(1) 		21
(−6) 		11
(−12) 		7
(−14)
Average precipitation inches (mm) 3.30
(84) 		3.19
(81) 		3.95
(100) 		2.64
(67) 		2.48
(63) 		6.45
(164) 		6.55
(166) 		6.80
(173) 		8.19
(208) 		3.93
(100) 		2.11
(54) 		2.80
(71) 		52.39
(1,331)
Average precipitation days (≥ 0.01 in) 8.3 7.6 8.2 5.7 6.4 13.9 13.8 15.0 12.2 8.2 6.8 7.4 113.5
Average relative humidity (%) 74.9 72.2 71.2 69.5 72.7 76.8 77.7 80.3 80.8 78.6 77.7 76.7 75.8
Mean monthly sunshine hours 189.4 193.8 257.9 286.4 303.9 283.6 282.0 262.4 228.2 214.6 193.9 183.6 2,879.7
Percent possible sunshine 59 62 69 74 72 67 65 64 62 61 61 58 65
Source: NOAA (relative humidity and sun 1961−1990)[41][1][2][19]
Climate data for Memphis (Memphis Int'l Airport)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 79
(26) 		81
(27) 		87
(31) 		94
(34) 		99
(37) 		104
(40) 		108
(42) 		107
(42) 		103
(39) 		95
(35) 		86
(30) 		81
(27) 		108
(42)
Mean daily maximum °F (°C) 49.8
(9.9) 		54.7
(12.6) 		63.9
(17.7) 		73.0
(22.8) 		81.2
(27.3) 		88.9
(31.6) 		91.6
(33.1) 		91.3
(32.9) 		85.1
(29.5) 		74.4
(23.6) 		62.6
(17.0) 		52.1
(11.2) 		72.4
(22.4)
Daily mean °F (°C) 41.2
(5.1) 		45.5
(7.5) 		54.0
(12.2) 		62.9
(17.2) 		71.7
(22.1) 		79.6
(26.4) 		82.7
(28.2) 		82.0
(27.8) 		75.2
(24.0) 		64.1
(17.8) 		53.2
(11.8) 		43.6
(6.4) 		63.0
(17.2)
Mean daily minimum °F (°C) 32.6
(0.3) 		36.3
(2.4) 		44.1
(6.7) 		52.9
(11.6) 		62.2
(16.8) 		70.3
(21.3) 		73.8
(23.2) 		72.7
(22.6) 		65.2
(18.4) 		53.8
(12.1) 		43.7
(6.5) 		35.1
(1.7) 		53.6
(12.0)
Record low °F (°C) −8
(−22) 		−11
(−24) 		12
(−11) 		27
(−3) 		36
(2) 		48
(9) 		52
(11) 		48
(9) 		36
(2) 		25
(−4) 		9
(−13) 		−13
(−25) 		−13
(−25)
Average precipitation inches (mm) 3.98
(101) 		4.39
(112) 		5.16
(131) 		5.50
(140) 		5.25
(133) 		3.63
(92) 		4.59
(117) 		2.88
(73) 		3.09
(78) 		3.98
(101) 		5.49
(139) 		5.74
(146) 		53.68
(1,363)
Average snowfall inches (cm) 1.9
(4.8) 		1.3
(3.3) 		0.4
(1.0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		0
(0) 		trace 0.2
(0.51) 		3.8
(9.7)
Average precipitation days (≥ 0.01 in) 9.5 9.2 10.5 9.6 10.3 9.0 8.8 6.8 7.3 7.5 9.5 9.7 107.7
Average snowy days (≥ 0.1 in) 1.2 0.8 0.4 0 0 0 0 0 0 0 0 0.4 2.8
Average relative humidity (%) 68.2 66.4 63.2 62.5 66.4 66.8 69.1 69.6 71.3 66.2 67.7 68.8 67.2
Mean monthly sunshine hours 166.6 173.8 215.3 254.6 301.5 320.6 326.9 307.0 251.2 245.9 173.0 151.9 2,888.3
Percent possible sunshine 53 57 58 65 69 74 74 74 68 70 56 50 65
Source: NOAA (relative humidity 1961−1990, sun 1961−1987)[17][1][2][3][42]
  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2013-03-04. Cite error: The named reference "NOAA" was defined multiple times with different content (see the help page).
  2. ^ a b c d e f g h i j k l m n o p q r s t u v "Station Name: NY NEW YORK CNTRL PK TWR". National Oceanic and Atmospheric Administration. Retrieved 2014-03-13.{{cite web}}: CS1 maint: url-status (link) Cite error: The named reference "NOAA txt" was defined multiple times with different content (see the help page).
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w "New York Central Park, NY Climate avg 1961−1990". NOAA. Cite error: The named reference "noaasun" was defined multiple times with different content (see the help page).
  4. ^ "Station Name: CA LOS ANGELES DWTN USC CAMPUS". National Oceanic and Atmospheric Administration. Retrieved 2014-05-09.{{cite web}}: CS1 maint: url-status (link)
  5. ^ "LOS ANGELES/WBO CA Climate avg". National Oceanic and Atmospheric Administration. Retrieved October 20, 2013.
  6. ^ "Station Name: IL CHICAGO OHARE INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-18.{{cite web}}: CS1 maint: url-status (link)
  7. ^ "Chicago/O'Hare, IL Climate avg 1961-1990". National Oceanic and Atmospheric Administration. Retrieved May 14, 2013.
  8. ^ a b "Station Name: TX DALLAS LOVE FLD". National Oceanic & Atmospheric Administration. January 2013. Retrieved 2014-03-27. Cite error: The named reference "NCDC" was defined multiple times with different content (see the help page).
  9. ^ Rogers, Matt (1 April 2015). "April outlook: Winter be gone! First half of month looks warmer than average". The Washington Post. Retrieved 4 May 2015.
  10. ^ a b c d "Monthly Averages for Miami Int'l Airport". The Weather Channel. Retrieved 2013-10-12. Cite error: The named reference "Weather.com" was defined multiple times with different content (see the help page).
  11. ^ "Station Name: GA ATLANTA HARTSFIELD INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-19.{{cite web}}: CS1 maint: url-status (link)
  12. ^ "Station Name: CA SAN FRANCISCO DWTN". National Oceanic and Atmospheric Administration. Retrieved 2014-03-18.{{cite web}}: CS1 maint: url-status (link)
  13. ^ "San Francisco/Mission Dolores, CA Climate avg 1961-1990". National Oceanic and Atmospheric Administration. Retrieved April 23, 2013.
  14. ^ "Station Name: MI DETROIT METRO AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-19.{{cite web}}: CS1 maint: url-status (link)
  15. ^ "Detroit/Metropolitan ARPT MI Climate avg 1961–1990". National Oceanic and Atmospheric Administration. Retrieved May 12, 2013.
  16. ^ "Station Name: AZ Phoenix Sky Harbor INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2 June 2015.
  17. ^ a b c "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2011-12-15. Cite error: The named reference "NOWData" was defined multiple times with different content (see the help page).
  18. ^ a b c d e f g "WMO Climate avg for Seattle/Seattle–Tacoma INTL A, WA 1961–1990". National Oceanic and Atmospheric Administration. Retrieved October 31, 2013. Cite error: The named reference "NOAAsun" was defined multiple times with different content (see the help page).
  19. ^ a b "WMO climate avg for Minneapolis/INT'L ARPT, MN 1961−1990". National Oceanic and Atmospheric Administration. Retrieved April 8, 2014. Cite error: The named reference "NOAA2" was defined multiple times with different content (see the help page).
  20. ^ "Monthly Averages for Minneapolis, MN". The Weather Channel. Retrieved October 2007. {{cite web}}: Check date values in: |accessdate= (help)
  21. ^ "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2 June 2015.
  22. ^ "Station Name: CA San Diego Lindbergh FLD". National Oceanic & Atmospheric Administration. Retrieved 2 June 2015.
  23. ^ "San Diego/Lindbergh Field CA Climate avg 1961–1990". National Oceanic and Atmospheric Administration. Retrieved 2 June 2015.
  24. ^ "Station Name: MO ST LOUIS LAMBERT INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-22.{{cite web}}: CS1 maint: url-status (link)
  25. ^ "Station Name: MD MD SCI CTR BALTIMORE". National Oceanic and Atmospheric Administration. Retrieved February 27, 2013.{{cite web}}: CS1 maint: url-status (link)
  26. ^ "Baltimore Weather – Accuweather Forecast for MD 21201". Accuweather. Retrieved July 8, 2013.{{cite web}}: CS1 maint: url-status (link)
  27. ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved July 8, 2013.{{cite web}}: CS1 maint: url-status (link)
  28. ^ "Station Name: BALTIMORE WASH INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2014-03-13.{{cite web}}: CS1 maint: url-status (link)
  29. ^ "Station Name: CO DENVER-STAPLETON". National Oceanic and Atmospheric Administration. Retrieved 2014-03-13.{{cite web}}: CS1 maint: url-status (link)
  30. ^ "Threaded Climate exts for Denver Area, CO". National Weather Service. Retrieved 2012-02-10.
  31. ^ "Station Name: PA PITTSBURGH INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-11.{{cite web}}: CS1 maint: url-status (link)
  32. ^ "WMO Climate avg for ORLANDO/JETPORT, FL 1961–1990". National Oceanic and Atmospheric Administration. Retrieved 2014-05-13.
  33. ^ a b "Records for Cincinnati". National Weather Service. Retrieved 2012-04-13. Cite error: The named reference "NWS" was defined multiple times with different content (see the help page).
  34. ^ "Station Name: OH CLEVELAND". National Oceanic and Atmospheric Administration. Retrieved 2014-03-30.{{cite web}}: CS1 maint: url-status (link)
  35. ^ "Station Name: MO KANSAS CITY DOWNTOWN AP". National Oceanic and Atmospheric Administration. Retrieved 2014-03-13.{{cite web}}: CS1 maint: url-status (link)
  36. ^ "Kansas City Daily Climate Records/avg". National Oceanic and Atmospheric Administration. Retrieved February 12, 2011.
  37. ^ "NOWData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved June 2, 2015.
  38. ^ "Station Name: OH COLUMBUS PORT COLUMBUS INTL AP". National Oceanic and Atmospheric Administration. Retrieved 2013-03-30.{{cite web}}: CS1 maint: url-status (link)
  39. ^ "Station Name: IN INDIANAPOLIS". National Oceanic and Atmospheric Administration. Retrieved 2014-03-30.{{cite web}}: CS1 maint: url-status (link)
  40. ^ a b c "avg for Austin, Texas". The Weather Channel. Retrieved 2006-07-13. Cite error: The named reference "TWC" was defined multiple times with different content (see the help page).
  41. ^ "Threaded exts". National Oceanic and Atmospheric Administration.
  42. ^ "Average Percent Sunshine through 2009". National Climatic Data Center. Retrieved 2012-11-16.


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